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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.
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Methodologyโ€ขDownload Data
  1. Home
  2. Providers
  3. Kerwin Yap
๐Ÿ‘ฉโ€โš•๏ธ
NPIndividual

Kerwin Yap, NP

NPI: 1386916831
Las Vegas, NV
7 years of data
Nurse Practitioner
$3.2M
Total Payments
14.5K
Beneficiaries
36.7K
Services
2.26x
Markup Ratio

Peer Comparison

99th
percentile in specialty
This provider$3.2M
Specialty median$25.9K

๐Ÿ“‹ Key Findings

1Billed $3.2M over 7 years
22.26x markup ratio (above median)
399th percentile in Nurse Practitioner by payments
4Payments surged 171% in 2022
51 procedure with >3x markup
โœ“ No flags detected

๐Ÿ”Ž Data Analysis

This provider's $3.2M in total Medicare payments ranks in the 99th percentile of Nurse Practitioner providers nationally.

This provider's billing patterns fall within normal ranges for their specialty.

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 171% in 2022

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
2016$189.24$89.572.11x$99.67$371.6K3.5K2.3K
2017$203.74$95.612.13x$108.13$537.8K5.5K3.0K
2018$189.72$93.182.04x$96.54$566.7K6.2K3.1K
2019$187.63$92.222.03x$95.41$361.7K4.1K1.9K
2021$205.57$94.242.18x$111.33$229.5K2.7K1.1K
2022$212.71$88.952.39x$123.76$621.6K6.8K1.6K
2023$160.86$70.612.28x$90.25$529.1K8.0K1.5K

Top Procedures (20)

99350Established patient home visit, typically 60 minutes
$1.4M
11.7K services$117.09/svc2.42x markup
99349Established patient home visit, typically 40 minutes
$573.2K
6.8K services$84.30/svc2.22x markup
99497Advance care planning by the physician or other qualified health care professional
$323.4K
5.7K services$56.64/svc1.95x markup
G0438Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit
$167.2K
1.2K services$144.68/svc1.76x markup
99344New patient home visit, typically 60 minutes
$158.0K
1.4K services$114.63/svc2.24x markup
G0439Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
$119.6K
1.2K services$101.44/svc1.68x markup
G0108Diabetes outpatient self-management training services, individual, per 30 minutes
$110.6K
2.6K services$42.19/svc1.87x markup
99215Established patient outpatient visit, total time 40-54 minutesโš  3.6x markup
$78.8K
819 services$96.17/svc3.63x markup
99345New patient home visit, typically 75 minutes
$67.2K
481 services$139.68/svc2.42x markup
99348Established patient home visit, typically 25 minutes
$67.1K
1.3K services$53.60/svc2.43x markup
99490Chronic care management services, first 20 minutes of clinical staff time per calendar month
$31.8K
885 services$35.94/svc2.28x markup
99337Established patient assisted living visit, typically 60 minutes
$30.4K
238 services$127.54/svc2.17x markup
99407Smoking and tobacco use intensive counseling, greater than 10 minutes
$26.2K
1.1K services$23.30/svc1.73x markup
99443Physician telephone patient service, 21-30 minutes of medical discussion
$25.8K
330 services$78.31/svc2.32x markup
99354Prolonged office or other outpatient service first hour
$19.4K
275 services$70.59/svc2.29x markup
99214Established patient office or other outpatient visit, 30-39 minutes
$10.5K
126 services$83.51/svc1.85x markup
G0181Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow
$9.6K
134 services$72.00/svc2.91x markup
99336Established patient assisted living visit, typically 40 minutes
$7.7K
89 services$86.85/svc2.21x markup
99496Transitional care management services, highly complexity, requiring face-to-face visits within 7 days of discharge
$6.1K
32 services$190.86/svc2.00x markup
99495Transitional care management services for problem of at least moderate complexity
$4.1K
37 services$110.98/svc1.31x markup
Show detailed table โ–พ
CodeDescriptionServicesPaymentsAvg/ServiceMarkup
99350Established patient home visit, typically 60 minutes11.7K$1.4M$117.092.42x
99349Established patient home visit, typically 40 minutes6.8K$573.2K$84.302.22x
99497Advance care planning by the physician or other qualified health care professional5.7K$323.4K$56.641.95x
G0438Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit1.2K$167.2K$144.681.76x
99344New patient home visit, typically 60 minutes1.4K$158.0K$114.632.24x
G0439Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit1.2K$119.6K$101.441.68x
G0108Diabetes outpatient self-management training services, individual, per 30 minutes2.6K$110.6K$42.191.87x
99215Established patient outpatient visit, total time 40-54 minutes819$78.8K$96.173.63x
99345New patient home visit, typically 75 minutes481$67.2K$139.682.42x
99348Established patient home visit, typically 25 minutes1.3K$67.1K$53.602.43x
99490Chronic care management services, first 20 minutes of clinical staff time per calendar month885$31.8K$35.942.28x
99337Established patient assisted living visit, typically 60 minutes238$30.4K$127.542.17x
99407Smoking and tobacco use intensive counseling, greater than 10 minutes1.1K$26.2K$23.301.73x
99443Physician telephone patient service, 21-30 minutes of medical discussion330$25.8K$78.312.32x
99354Prolonged office or other outpatient service first hour275$19.4K$70.592.29x
99214Established patient office or other outpatient visit, 30-39 minutes126$10.5K$83.511.85x
G0181Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow134$9.6K$72.002.91x
99336Established patient assisted living visit, typically 40 minutes89$7.7K$86.852.21x
99496Transitional care management services, highly complexity, requiring face-to-face visits within 7 days of discharge32$6.1K$190.862.00x
99495Transitional care management services for problem of at least moderate complexity37$4.1K$110.981.31x

Markup Analysis

Charge-to-Payment Ratio

2.26x

This provider submits charges 2.26 times higher than what Medicare actually pays.

What This Means

A markup ratio of 2.26x means for every $100 Medicare pays, this provider initially charges $226. This is higher than the national average.

Location

Las Vegas, NV

Provider Verification

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

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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.

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