Medicare Enrolled

Dr. Carolyn Ahn, FNP

Internal Medicine · Plano, TX
Practice pattern: Clinical Cardiology — Primarily office-based clinical cardiology
Low-engagement
5941 DALLAS PKWY, Plano, TX 75093
9727584455
In practice since 2019 (6 years)
NPI: 1033754098 verify on NPPES ↗
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating. This page presents federal public records about Dr. Ahn from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
Are you Dr. Ahn? Request a correction or review of any data shown here. Provider portal →

What this data tells you about Dr. Ahn

Dr. Carolyn Ahn is an internal medicine specialist in Plano, TX, with 6 years of NPI registration. Based on federal Medicare data, Dr. Ahn performed 1,384 Medicare services across 929 unique beneficiaries.

Between the years covered by Open Payments, Dr. Ahn received a total of $4,122 from 42 pharmaceutical and/or device companies across 239 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in internal medicine. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.

The Data Coverage level for Dr. Ahn is Very High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.

✓ 6 years in practice ▲ Top 26% volume in TX $4,122 industry payments

Medicare Practice Summary

Medicare Utilization ↗
1,384
Medicare services
Top 26% in TX for internal medicine
929
Unique beneficiaries
$28
Avg. Medicare payment
Medicare patients only (65+ / disabled) · Not a quality rating · How to read this →
~231 Medicare services per year of practice

Top procedures by volume

Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.

Procedure Volume Avg. paid Avg. submitted
Office visit, established patient (20-29 min) 167 $53 $125
Basic metabolic blood panel 120 $8 $10
Blood draw (venipuncture) 100 $8 $10
Liver function blood test panel 100 $8 $15
Office visit, established patient (30-39 min) 98 $78 $153
Lipid panel (cholesterol and triglycerides) 97 $13 $16
Creatinine test (kidney function) 84 $5 $7
Hemoglobin A1c test (diabetes monitoring) 58 $10 $16
Thyroid stimulating hormone (TSH) test 48 $16 $20
Free thyroxine (T4) test 44 $9 $15
Urine microalbumin (protein) analysis 43 $6 $7
Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes 42 $21 $28
Automated urinalysis 41 $2 $3
Vitamin D level test 39 $29 $39
Annual wellness visit, follow-up 39 $105 $123
Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen 38 $50 $110
Annual depression screening 37 $15 $19
Detection test by nucleic acid for multiple types influenza virus 36 $94 $125
Detection test by nucleic acid for strep (streptococcus, group a), amplified probe technique 31 $34 $161
Urinalysis, manual 28 $3 $24
Complete blood count (CBC) with differential 18 $8 $10
Flu vaccine, high-dose 18 $67 $69
Electrocardiogram (EKG), 12-lead 17 $8 $20
Flu vaccine administration 17 $29 $30
Office visit, established patient, complex (40-54 min) 12 $45 $200
Colorectal cancer screening; fecal occult blood test, immunoassay, 1-3 simultaneous 12 $14 $61
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.

Industry Payment Transparency

Open Payments through 2024 ↗
$4,122
Total received (2021-2024)
Avg $1,031/year across 4 years
Top 19% in TX for internal medicine
42
Companies
239
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →

Payment profile

Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.

Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$4,026 (97.7%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$96 (2.3%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$1,364
2023
$1,069
2022
$949
2021
$740

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
Novo Nordisk Inc
$487
Boehringer Ingelheim Pharmaceuticals, Inc.
$453
ABBVIE INC.
$399
Lilly USA, LLC
$366
Janssen Pharmaceuticals, Inc
$261
GlaxoSmithKline, LLC.
$228
Amarin Pharma Inc.
$173
Astellas Pharma US Inc
$163
AstraZeneca Pharmaceuticals LP
$158
Dexcom, Inc.
$155
PFIZER INC.
$146
AbbVie Inc.
$132
Esperion Therapeutics, Inc.
$127
Takeda Pharmaceuticals U.S.A., Inc.
$106
Merck Sharp & Dohme Corporation
$58
Antares Pharma, Inc.
$55
Merck Sharp & Dohme LLC
$55
Exact Sciences Corporation
$42
Genentech USA, Inc.
$42
Kowa Pharmaceuticals America, Inc.
$37
Nestle HealthCare Nutrition Inc.
$34
Seqirus USA Inc
$33
Nevro Corp.
$32
Bayer HealthCare Pharmaceuticals Inc.
$30
COLOPLAST CORP
$30
SANOFI-AVENTIS U.S. LLC
$28
Inari Medical, Inc.
$26
VBI Vaccine (Delaware) Inc.
$24
Phathom Pharmaceuticals, Inc.
$24
HeartFlow, Inc.
$23
Philips North America LLC
$21
Tempus AI, Inc
$19
Optos, Inc.
$18
Boston Scientific Corporation
$18
Siemens Medical Solutions USA, Inc.
$17
Abbott Laboratories
$16
EISAI INC.
$15
Bayer Healthcare Pharmaceuticals Inc.
$15
Amgen Inc.
$14
AIMMUNE THERAPEUTICS, INC.
$14
Currax Pharmaceuticals LLC
$14
Althera Pharmaceuticals LLC
$12
Top 3 companies account for 32.5% of total payments
Associated products mentioned in payments ›
(CK7) Extended Holter · AIRSUPRA · AREXVY · BELSOMRA · BOTOX · BREZTRI · CAPVAXIVE · Cologuard Collection Kit · Dayvigo · Dexcom G6 Transmitter · EMGALITY · FARXIGA · FFRct · FLOWTRIEVER CATHETER · Fluad · Flucelvax · GARDASIL · GARDASIL 9 · General - Embolics · INVEGA SUSTENNA · JARDIANCE · JOT DX · KRYSTEXXA · Kerendia · LINZESS · Livalo · MAGNETOM Skyra · MOUNJARO · Myrbetriq · NEXLETOL · NFC-700 · NOCDURNA · OFEV · ONZETRA XSAIL · Ozempic · PREVNAR 13 · PREVNAR 20 · PreHevbrio · QULIPTA · Restorelle · Roszet · Rybelsus · S · SHINGRIX · SOLIQUA 100/33 · Saxenda · Senza · TRELEGY ELLIPTA · TRINTELLIX · TRULICITY · UBRELVY · VOQUEZNA · VRAYLAR · VYVANSE · Vascepa · Veozah · Wegovy · XARELTO · Xofluza · ZENPEP
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →

Most payments (98%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.

Equivalent to $298 per 100 Medicare services performed
Looking for an internal medicine specialist in Plano?
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Geographic Context

Internal medicine physicians within 10 mi
2,127
Per 100K population
190.5
County median income
$117,588
Nearest hospital
TEXAS HEALTH PRESBYTERIAN HOSPITAL PLANO
0.0 mi

Data Sources

Provider Registry NPPES Weekly updates
Medicare Enrollment PECOS Monthly updates
Practice Data Medicare Util. Annual (CY lag)
Industry Payments Open Payments CY 2024
Disciplinary History — Not public N/A

This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This measures how much public data is available about a provider — not how good they are. How we calculate this →

Summary

Dr. Ahn is a clinical cardiology specialist, with above-average Medicare volume (top 26% in TX), with low-engagement industry engagement in the top 19% of TX peers.

This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →

Frequently Asked Questions

Is Dr. Ahn experienced with office visit, established patient (20-29 min)?
Based on Medicare claims data, Dr. Ahn performed 167 office visit, established patient (20-29 min) services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Ahn receive payments from pharmaceutical companies?
Yes. Dr. Ahn received a total of $4,122 from 42 companies across 239 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Ahn's costs compare to other internal medicine physicians in Plano?
Dr. Ahn's average Medicare payment per service is $28. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Ahn) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
About this page

All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.

This page is not medical advice, an endorsement, a recommendation, or a quality rating. The Transparency Score measures data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Payments from industry are legal and do not indicate wrongdoing. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →