NPPES file of Aug 9, 2026

Robert Won-Kee Chang, M.D.

Vascular Surgery Physician · Lebanon, NH

Robert Won-Kee Chang, M.D. is a vascular surgery physician with a practice address in Lebanon, New Hampshire, and NPI 1316059058, issued on Aug 31, 2006. Check the license (New Hampshire RT 1566, as entered in NPPES) on the New Hampshire Board of Medicine; 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
1316059058
Name
Robert Won-Kee Chang
Credential
M.D.
Primary taxonomy
Vascular Surgery Physician 2086S0129X
License number
RT 1566 NH
Self-reported in NPPES; status is on the state search
Practice location
1 Medical Center Dr, Lebanon, NH 03756
Phone
(603) 650-8191
Enumerated
Aug 31, 2006
Record last updated
Feb 11, 2022
Medicare enrollment
Enrolled (PECOS I20080926000399); accepts Medicare assignment
Medical or professional school
University Of Southern California Keck School Of Medicine, 1999
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.
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Also registered at 1 Medical Center Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Maria Abbate, NPFamily Nurse Practitioner1669683637
  2. McCall Abbott, APRNFamily Nurse Practitioner1396292454
  3. Lauren AbbuhlStudent in an Organized Health Care Education/Training Program1760322986
  4. William Abdu, M.D.Orthopaedic Surgery of the Spine Physician1134162324
  5. Iryna Aberkorn, MDFamily Medicine Physician1780846071
  6. Majd Aboul Hosn, MDStudent in an Organized Health Care Education/Training Program1932901949

Verify Robert Won-Kee Chang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Hampshire Board of Medicine
    Search for license RT 1566
    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 New Hampshire 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.

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70% fewer Medicare Part D claims than the average vascular surgery physician in 2024

60 Medicare Part D claims for 21 beneficiaries, against an average of 201 among the 3,936 providers of this specialty who prescribed in Part D.

  1. Robert Chang60
  2. Specialty average201

Most prescribed

  1. Clopidogrel22 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.

Bills Medicare through one group practice

  1. Permanente Medical Group IncRedwood City, CA

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

Robert Won-Kee Chang among 41 vascular surgery physician records in New Hampshire

Robert Won-Kee Chang, M.D. is one of 41 vascular surgery physician records with a practice address in New Hampshire. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 51% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 78% of these records are
  • Graduated1999 · median 2005 among the 32 with a school on file
  • Record last updated2022 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0129X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Vascular Surgery Physician providers in New Hampshire

There are 41 vascular surgery physician records in New Hampshire.

The 8 vascular surgery physician records with the nearest ZIP codes

  1. Matthew AlefLebanon, NH 037561639371610
  2. Jack Cronenwett, MDLebanon, NH 037561962412098
  3. Mark Fillinger, M.D.Lebanon, NH 037561508879024
  4. Philip Goodney, MDLebanon, NH 037561821193434
  5. David Kuwayama, MDLebanon, NH 037561265591333
  6. Brian Nolan, M.D.Lebanon, NH 037561144337569
  7. Richard Powell, M.D.Lebanon, NH 037561942316914
  8. Jennifer Stableford, MDLebanon, NH 037561316185705

Common questions

What is Robert Won-Kee Chang, M.D.'s NPI number?

Robert Won-Kee Chang, M.D.'s National Provider Identifier (NPI) is 1316059058, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert Won-Kee Chang, M.D. located?

The NPPES record lists a practice address at 1 Medical Center Dr, Lebanon, NH, 03756. Phone: (603) 650-8191. Providers update this record themselves, so call before visiting.

How can I verify Robert Won-Kee Chang, M.D.'s license?

NPPES lists New Hampshire license number RT 1566, as entered by the provider. Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Robert Won-Kee Chang, M.D. prescribe under Medicare Part D?

In 2024, Robert Won-Kee Chang, M.D. had 60 Medicare Part D claims for 21 beneficiaries; the average among vascular surgery physician prescribers was 201. 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.