OpenMedicare
Start Here
Explore
Fraud
Investigations
Data
Tools
About

Footer

OpenMedicare

Independent Medicare data journalism

Sister Sites

  • OpenMedicaid
  • OpenFeds
  • OpenSpending

Explore

  • Providers
  • Procedures
  • States
  • Specialties
  • Search

Fraud Analysis

  • Still Out There (AI)
  • Fraud Overview
  • Fraud Watchlist
  • Deep Dive Profiles
  • Impossible Numbers
  • Report Fraud

Investigations

  • The Algorithm Knows
  • How We Built the Model
  • Internal Medicine Crisis
  • Florida & California Fraud
  • Million Dollar Flagged
  • All Investigations

Tools

  • Provider Lookup
  • Compare
  • Cost Calculator
  • Your Medicare Dollar
  • Downloads

About

  • About OpenMedicare
  • Methodology
  • Glossary
  • Data Sources
  • API Docs
  • Updates
Data Sources: Centers for Medicare & Medicaid Services (CMS), Medicare Provider Utilization and Payment Data
Disclaimer: This site is an independent journalism project. Data analysis and editorial content are not affiliated with or endorsed by CMS or any government agency. All spending figures are based on publicly available Medicare payment records.
Sister Sites: OpenMedicaid ยท OpenFeds ยท OpenSpending

ยฉ 2026 OpenMedicare. Independent data journalism. Built by TheDataProject.ai

Methodologyโ€ขDownload Data
  1. Home
  2. Providers
  3. Nina Maw Maw
๐Ÿฉบ
MDIndividual

Nina Maw Maw, M.D.

NPI: 1407851777
Rancho Mirage, CA
10 years of data
Family Practice
$6.1M
Total Payments
45.7K
Beneficiaries
83.1K
Services
2.25x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$6.1M
Specialty median$55.2K

๐Ÿ“‹ Key Findings

1Billed $6.1M over 10 years
22.25x markup ratio (above median)
399th percentile in Family Practice by payments
4Payments surged 77% in 2021
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $6.1M in total Medicare payments ranks in the 99th percentile of Family Practice providers nationally.

Medicare payments to this provider grew 180% from 2014 to 2023.

AI-generated analysis based on Medicare payment data.

Annual Medicare Payments

Annual Services Provided

Avg Payment per Service

Markup Ratio Over Time

๐Ÿ“ˆ

Notable: Payments increased 77% in 2021

Year-over-year payment surges can indicate changes in practice volume, new services, or billing pattern shifts.

Submitted Charges vs. Medicare Payments

Average per-service amounts submitted by the provider compared to what Medicare actually paid โ€” the gap represents the markup.

YearAvg SubmittedAvg PaidMarkup RatioGap per ServiceTotal PaymentsServicesBeneficiaries
2014$94.09$69.971.34x$24.12$441.0K5.1K2.3K
2015$96.55$73.411.32x$23.14$525.2K5.8K2.7K
2016$140.15$86.691.62x$53.46$482.6K5.8K3.3K
2017$132.46$76.211.74x$56.25$451.8K6.2K3.1K
2018$186.56$75.892.46x$110.67$444.6K6.0K3.1K
2019$169.01$69.102.45x$99.91$442.4K6.4K3.3K
2020$175.64$71.292.46x$104.35$418.4K5.9K3.3K
2021$158.28$67.412.35x$90.87$741.9K9.9K6.3K
2022$168.56$67.042.51x$101.52$914.0K12.7K7.9K
2023$162.17$61.512.64x$100.66$1.2M19.3K10.4K

Top Procedures (20)

99214Established patient office or other outpatient, visit typically 25 minutes
$2.2M
24.5K services$88.05/svc2.49x markup
99233Subsequent hospital inpatient care, typically 35 minutes per day
$690.5K
8.2K services$84.38/svc2.06x markup
99291Critical care delivery critically ill or injured patient, first 30-74 minutes
$527.3K
3.0K services$177.37/svc1.80x markup
G0439Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
$388.6K
2.9K services$132.91/svc1.98x markup
99223Initial hospital inpatient care, typically 70 minutes per day
$264.6K
1.7K services$157.02/svc2.02x markup
99497Advance care planning by the physician or other qualified health care professional
$212.2K
2.5K services$83.91/svc2.12x markup
99490Chronic care management services at least 20 minutes per calendar month
$171.9K
3.4K services$50.19/svc2.62x markup
99232Subsequent hospital inpatient care, typically 25 minutes per day
$168.3K
2.9K services$58.39/svc2.48x markup
99239Hospital discharge day management, more than 30 minutes
$143.4K
1.6K services$87.48/svc2.09x markup
99204New patient office or other outpatient visit, typically 45 minutes
$100.9K
881 services$114.52/svc2.40x markup
G0514Prolonged preventive service(s) (beyond the typical service time of the primary procedure), in the office or other outpatient setting requiring direct patient contact beyond the usual service; each additional 30 minutes (list separately in addition to code
$91.9K
1.4K services$65.49/svc2.10x markup
99215Established patient office or other outpatient, visit typically 40 minutes
$88.2K
862 services$102.34/svc1.75x markup
G0513Prolonged preventive service(s) (beyond the typical service time of the primary procedure), in the office or other outpatient setting requiring direct patient contact beyond the usual service; first 30 minutes (list separately in addition to code for preve
$84.1K
1.3K services$65.58/svc2.09x markup
99457Remote physiologic monitoring treatment management services, health care professional time in a calendar month requiring interactive communication with the patient/caregiver; first 20 minutes
$81.7K
2.0K services$40.28/svc2.60x markup
99454Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days
$69.8K
1.5K services$45.98/svc2.64x markup
G0446Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes
$67.2K
2.5K services$27.14/svc2.08x markup
90670Pneumococcal vaccine for injection into muscle
$62.7K
303 services$206.90/svc1.57x markup
99491Chronic care management services for two or more chronic conditions, first 30 minutes provided personally by health care professional, per calendar month
$58.7K
855 services$68.66/svc2.33x markup
G0444Annual depression screening, 15 minutes
$49.9K
2.6K services$19.41/svc2.06x markup
99238Hospital discharge day management, 30 minutes or less
$49.0K
850 services$57.62/svc2.09x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
99214Established patient office or other outpatient, visit typically 25 minutes24.5K$2.2M$88.052.49x
99233Subsequent hospital inpatient care, typically 35 minutes per day8.2K$690.5K$84.382.06x
99291Critical care delivery critically ill or injured patient, first 30-74 minutes3.0K$527.3K$177.371.80x
G0439Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit2.9K$388.6K$132.911.98x
99223Initial hospital inpatient care, typically 70 minutes per day1.7K$264.6K$157.022.02x
99497Advance care planning by the physician or other qualified health care professional2.5K$212.2K$83.912.12x
99490Chronic care management services at least 20 minutes per calendar month3.4K$171.9K$50.192.62x
99232Subsequent hospital inpatient care, typically 25 minutes per day2.9K$168.3K$58.392.48x
99239Hospital discharge day management, more than 30 minutes1.6K$143.4K$87.482.09x
99204New patient office or other outpatient visit, typically 45 minutes881$100.9K$114.522.40x
G0514Prolonged preventive service(s) (beyond the typical service time of the primary procedure), in the office or other outpatient setting requiring direct patient contact beyond the usual service; each additional 30 minutes (list separately in addition to code1.4K$91.9K$65.492.10x
99215Established patient office or other outpatient, visit typically 40 minutes862$88.2K$102.341.75x
G0513Prolonged preventive service(s) (beyond the typical service time of the primary procedure), in the office or other outpatient setting requiring direct patient contact beyond the usual service; first 30 minutes (list separately in addition to code for preve1.3K$84.1K$65.582.09x
99457Remote physiologic monitoring treatment management services, health care professional time in a calendar month requiring interactive communication with the patient/caregiver; first 20 minutes2.0K$81.7K$40.282.60x
99454Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days1.5K$69.8K$45.982.64x
G0446Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes2.5K$67.2K$27.142.08x
90670Pneumococcal vaccine for injection into muscle303$62.7K$206.901.57x
99491Chronic care management services for two or more chronic conditions, first 30 minutes provided personally by health care professional, per calendar month855$58.7K$68.662.33x
G0444Annual depression screening, 15 minutes2.6K$49.9K$19.412.06x
99238Hospital discharge day management, 30 minutes or less850$49.0K$57.622.09x

Markup Analysis

Charge-to-Payment Ratio

2.25x

This provider submits charges 2.25 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.25x means for every $100 Medicare pays, this provider initially charges $225. This is higher than the national average.

Location

Rancho Mirage, CA

Provider Verification

Always verify provider credentials and location before scheduling appointments. This data reflects Medicare payments and may not include all practice locations.

Related

Browse
โ† Back to Provider Directory
State
All providers in CA โ†’
Specialty
All Family Practice providers โ†’
Tool
Compare this provider โ†’
Analysis
Fraud Watchlist โ†’
Search
Search all providers โ†’

Share This Provider

Share this provider's Medicare payment information

Share:

Data Sources

  • โ€ข Centers for Medicare & Medicaid Services (CMS)
  • โ€ข Medicare Provider Utilization and Payment Data (2014-2023)
  • โ€ข National Plan and Provider Enumeration System (NPPES)

Last Updated: February 2026 (data through 2023, the latest CMS release)

Note: All data is from publicly available Medicare records. OpenMedicare is an independent journalism project not affiliated with CMS.

Believe this data is inaccurate? Dispute this data