NPPES file of Aug 9, 2026

Yan Duan, M.D.

Internal Medicine Physician · Sugar Land, TX

Yan Duan, M.D. is an internal medicine physician with a practice address in Sugar Land, Texas, and NPI 1649650045, issued on Jun 2, 2015. Check the license (Texas R6555, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1649650045
Name
Yan Duan
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
R6555 TX
125066683 IL
Self-reported in NPPES; status is on the state search
Practice location
1429 Highway 6 South, Ste 202, Sugar Land, TX 77478
Phone
(832) 500-1285
Enumerated
Jun 2, 2015
Record last updated
Dec 11, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(281) 242-4341
Medicare enrollment
Enrolled (PECOS I20180809004532); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Verify Yan Duan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license R6555
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

2.9 times the Medicare Part D claims of the average internal medicine physician in 2024

9,111 Medicare Part D claims for 786 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 51 claims were for opioids.

  1. Yan Duan9,111
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium535 claims
  2. Amlodipine Besylate477 claims
  3. Rosuvastatin Calcium440 claims
  4. Losartan Potassium406 claims
  5. Levothyroxine Sodium387 claims
  6. Metformin Hcl280 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $1,073.29

56 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Yan Duan$1,073.29
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Hillcroft Medical Clinic AssocSugar Land, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Yan Duan among 9,175 internal medicine physician records in Texas

Yan Duan, M.D. is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 71% of them.

  • NPI issued2015 · 71% of these records are older, 26% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2001 · median 2004 among the 6,088 with a school on file
  • Record last updated2020 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

110 internal medicine physician records list a practice address in Sugar Land

They are 110 of the 3,851 NPPES records with a practice address in Sugar Land, and 9,175 internal medicine physician records in Texas.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Shanaz Ali, M.D.Sugar Land, TX 774781871562272
  2. Anuradha Aparasu, MDSugar Land, TX 774781477510014
  3. Spencer Berthelsen, MDSugar Land, TX 774781295763290
  4. Nagasudha Chittaluru, M.DSugar Land, TX 774781972560431
  5. Reid Cuming, M.D., P.A.Sugar Land, TX 774781285669176
  6. Steven Levy, D.O.Sugar Land, TX 774781750351219
  7. Bhagwat Patel, M.D.,Sugar Land, TX 774781225060064
  8. Irma Pfister, MDSugar Land, TX 774781790740926

Common questions

What is Yan Duan, M.D.'s NPI number?

Yan Duan, M.D.'s National Provider Identifier (NPI) is 1649650045, issued on Jun 2, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Yan Duan, M.D. located?

The NPPES record lists a practice address at 1429 Highway 6 South, Ste 202, Sugar Land, TX, 77478. Phone: (832) 500-1285. Providers update this record themselves, so call before visiting.

How can I verify Yan Duan, M.D.'s license?

NPPES lists Texas license number R6555, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Yan Duan, M.D. prescribe under Medicare Part D?

In 2024, Yan Duan, M.D. had 9,111 Medicare Part D claims for 786 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.