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. Davinder Singh
๐Ÿฉบ
MDIndividual

Davinder Singh, M.D.

NPI: 1114085362
Fountain Valley, CA
10 years of data
Internal Medicine
$4.4M
Total Payments
10.7K
Beneficiaries
103.7K
Services
3.55x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$4.4M
Specialty median$84.0K

๐Ÿ“‹ Key Findings

1Billed $4.4M over 10 years
23.55x markup ratio (above median)
399th percentile in Internal Medicine by payments
45 procedures with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $4.4M in total Medicare payments ranks in the 99th percentile of Internal Medicine providers nationally.

70% of their billing comes from a single procedure code (99231 โ€” Subsequent hospital inpatient care, typically 15 minutes per day).

AI-generated analysis based on Medicare payment data.

Annual Medicare Payments

Annual Services Provided

Avg Payment per Service

Markup Ratio Over Time

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$331.60$110.183.01x$221.42$503.6K11.1K1.4K
2015$358.14$120.512.97x$237.63$534.0K12.9K1.3K
2016$363.67$107.453.38x$256.22$435.1K10.7K987
2017$404.62$110.103.68x$294.52$465.9K11.5K1.1K
2018$408.54$109.333.74x$299.21$425.5K10.2K1.1K
2019$378.68$108.773.48x$269.91$450.3K10.4K1.1K
2020$379.64$110.413.44x$269.23$415.7K9.8K980
2021$378.80$106.733.55x$272.07$324.0K7.9K840
2022$368.02$103.833.54x$264.19$356.2K9.1K908
2023$372.23$104.103.58x$268.13$483.4K10.0K1.0K

Top Procedures (14)

99231Subsequent hospital inpatient care, typically 15 minutes per dayโš  4.0x markup
$3.1M
91.7K services$33.64/svc4.04x markup
99223Initial hospital inpatient care, typically 70 minutes per day
$615.4K
3.8K services$163.47/svc1.98x markup
99232Subsequent hospital inpatient care, typically 25 minutes per day
$350.1K
5.7K services$61.50/svc1.78x markup
43246Insertion of stomach tube using an endoscopeโš  4.8x markup
$161.4K
919 services$175.63/svc4.83x markup
99222Initial hospital inpatient care, typically 50 minutes per day
$107.3K
948 services$113.13/svc1.77x markup
43235Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscopeโš  5.9x markup
$35.1K
344 services$101.95/svc5.89x markup
45378Diagnostic examination of large bowel using an endoscopeโš  5.1x markup
$17.5K
103 services$170.12/svc5.07x markup
99214Established patient office or other outpatient, visit typically 25 minutes
$6.0K
70 services$85.71/svc1.50x markup
99233Subsequent hospital inpatient care, typically 35 minutes per day
$5.8K
67 services$86.96/svc1.81x markup
99310Subsequent nursing facility visit, typically 35 minutes per day
$4.3K
37 services$115.96/svc1.29x markup
99291Critical care delivery critically ill or injured patient, first 30-74 minutes
$2.4K
13 services$186.93/svc1.50x markup
99305Initial nursing facility visit, typically 35 minutes per dayโš  3.2x markup
$1.9K
17 services$109.79/svc3.19x markup
99309Subsequent nursing facility visit, typically 25 minutes per day
$1.9K
25 services$74.07/svc1.56x markup
99203New patient office or other outpatient visit, typically 30 minutes
$1.2K
16 services$73.71/svc2.08x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
99231Subsequent hospital inpatient care, typically 15 minutes per day91.7K$3.1M$33.644.04x
99223Initial hospital inpatient care, typically 70 minutes per day3.8K$615.4K$163.471.98x
99232Subsequent hospital inpatient care, typically 25 minutes per day5.7K$350.1K$61.501.78x
43246Insertion of stomach tube using an endoscope919$161.4K$175.634.83x
99222Initial hospital inpatient care, typically 50 minutes per day948$107.3K$113.131.77x
43235Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscope344$35.1K$101.955.89x
45378Diagnostic examination of large bowel using an endoscope103$17.5K$170.125.07x
99214Established patient office or other outpatient, visit typically 25 minutes70$6.0K$85.711.50x
99233Subsequent hospital inpatient care, typically 35 minutes per day67$5.8K$86.961.81x
99310Subsequent nursing facility visit, typically 35 minutes per day37$4.3K$115.961.29x
99291Critical care delivery critically ill or injured patient, first 30-74 minutes13$2.4K$186.931.50x
99305Initial nursing facility visit, typically 35 minutes per day17$1.9K$109.793.19x
99309Subsequent nursing facility visit, typically 25 minutes per day25$1.9K$74.071.56x
99203New patient office or other outpatient visit, typically 30 minutes16$1.2K$73.712.08x

Markup Analysis

Charge-to-Payment Ratio

3.55x

This provider submits charges 3.55 times higher than what Medicare actually pays.

What This Means

A markup ratio of 3.55x means for every $100 Medicare pays, this provider initially charges $355. This is higher than the national average.

Location

Fountain Valley, CA

Provider Verification

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

Similar Providers

Other Internal Medicine providers in CA for peer comparison.

Davinder Singh (you)
$4.4M
Aaron Jeng, MD, MPH
$45.6M
Richard Park, M.D.โš ๏ธ
$34.7M
Show detailed table โ–พ
ProviderLocationTotal PaymentsStatus
Aaron Jeng, MD, MPHSan Gabriel, CA$45.6Mโœ“ Clear
Richard Park, M.D.Granada Hills, CA$34.7Mโš ๏ธ Flagged

Related

Browse
โ† Back to Provider Directory
State
All providers in CA โ†’
Specialty
All Internal Medicine 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