NPPES file of Aug 9, 2026

Lydia Hwei Chang, M.D.

Pulmonary Disease Physician · Chapel Hill, NC

Lydia Hwei Chang, M.D. is a pulmonary disease physician with a practice address in Chapel Hill, North Carolina, and NPI 1972570141, issued on Mar 7, 2006. Check the license (North Carolina 200100849, as entered in NPPES) on the North Carolina 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
1972570141
Name
Lydia Hwei Chang
Credential
M.D.
Primary taxonomy
Pulmonary Disease Physician 207RP1001X
License number
200100849 NC
Self-reported in NPPES; status is on the state search
Practice location
130 Mason Farm RD, Chapel Hill, NC 27599
Phone
(919) 966-2531
Enumerated
Mar 7, 2006
Record last updated
Mar 6, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(919) 966-7013
Medicaid ID
277792 SC
Medicare enrollment
Enrolled (PECOS I20071002000466); accepts Medicare assignment
Medical or professional school
University Of Michigan Medical School, 1998
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 130 Mason Farm RD

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

  1. Doris Akolbire, MDInternal Medicine Physician1952045213
  2. Jasmine Barrow, MDGastroenterology Physician1124394697
  3. Charles Baumann, MDStudent in an Organized Health Care Education/Training Program1114509106
  4. Daniel Cavanaugh, MDOrthopaedic Surgery of the Spine Physician1790004984
  5. Bailee Cummings, MD, MPHInfectious Disease Physician1366147449
  6. Ann DennisInternal Medicine Physician1912122516

Verify Lydia Hwei Chang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNorth Carolina Medical Board
    Search for license 200100849
    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 North Carolina 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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2% more Medicare Part D claims than the average pulmonary disease physician in 2024

1,454 Medicare Part D claims for 232 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 43% of claims.

  1. Lydia Chang1,454
  2. Specialty average1,425

Most prescribed

  1. Montelukast Sodium162 claims
  2. Trelegy Ellipta116 claims
  3. Prednisone107 claims
  4. Azithromycin104 claims
  5. Breo Ellipta98 claims
  6. Anoro Ellipta85 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. Mission Health Community Multispecialty Providers LLCAsheville, NC

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

Lydia Hwei Chang among 429 pulmonary disease physician records in North Carolina

Lydia Hwei Chang, M.D. is one of 429 pulmonary disease physician records with a practice address in North Carolina. 84% 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 13% of them.

  • NPI issued2006 · 13% of these records are older, 46% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 78% of these records are
  • Graduated1998 · median 2001 among the 333 with a school on file
  • Record last updated2014 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pulmonary Disease Physician providers in North Carolina

There are 429 pulmonary disease physician records in North Carolina.

The 8 pulmonary disease physician records with the nearest ZIP codes

  1. Brian BoehleckeChapel Hill, NC 275991811074941
  2. Richard Boucher, MDChapel Hill, NC 275991578640603
  3. Philip Bromberg, MDChapel Hill, NC 275991689751604
  4. Shannon Carson, MDChapel Hill, NC 275991356411078
  5. Raymond Coakley, MDChapel Hill, NC 275991508939364
  6. Courtney Crim, MDChapel Hill, NC 275991992878656
  7. Scott Donaldson, MDChapel Hill, NC 275991225115785
  8. James Donohue, MDChapel Hill, NC 275991740353556

Common questions

What is Lydia Hwei Chang, M.D.'s NPI number?

Lydia Hwei Chang, M.D.'s National Provider Identifier (NPI) is 1972570141, issued on Mar 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Lydia Hwei Chang, M.D. located?

The NPPES record lists a practice address at 130 Mason Farm RD, Chapel Hill, NC, 27599. Phone: (919) 966-2531. Providers update this record themselves, so call before visiting.

How can I verify Lydia Hwei Chang, M.D.'s license?

NPPES lists North Carolina license number 200100849, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Lydia Hwei Chang, M.D. prescribe under Medicare Part D?

In 2024, Lydia Hwei Chang, M.D. had 1,454 Medicare Part D claims for 232 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. 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.