NPPES file of Aug 9, 2026

David Chao, M.D.

Internal Medicine Physician · Pittsburgh, PA

David Chao, M.D. is an internal medicine physician with a practice address in Pittsburgh, Pennsylvania, and NPI 1720371073, issued on May 19, 2011. Check the license on the Pennsylvania Department of State (PALS); 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
1720371073
Name
David Chao
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A130162 CA
Self-reported in NPPES; status is on the state search
Practice location
5230 Centre Ave, Pittsburgh, PA 15232
Phone
(408) 569-5663
Enumerated
May 19, 2011
Record last updated
Feb 11, 2022
Medicare enrollment
Enrolled (PECOS I20151109001145); accepts Medicare assignment
Medical or professional school
Michigan State University College Of Human Medicine, 2010
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.
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Also registered at 5230 Centre Ave

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

  1. Elyse Addonizio, DOInternal Medicine Physician1508507708
  2. Christie Adelsberg, CRNPFamily Nurse Practitioner1295843597
  3. Aya Agha, MDHematology & Oncology Physician1730829177
  4. Daniel Ahrens, PHARMDPharmacist1881580215
  5. Nicole Alexandrovich, DPTPhysical Therapist1881107969
  6. Melissa Amin, PTPhysical Therapist1275601312

Verify David Chao in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)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 Pennsylvania 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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84% fewer Medicare Part D claims than the average internal medicine physician in 2024

521 Medicare Part D claims for 316 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. David Chao521
  2. Specialty average3,176

Most prescribed

  1. Gavilyte-C216 claims
  2. Omeprazole48 claims
  3. Budesonide Dr31 claims
  4. Cholestyramine20 claims
  5. Xifaxan18 claims
  6. Mesalamine17 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 IncSan Jose, CA

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

David Chao among 7,300 internal medicine physician records in Pennsylvania

David Chao, M.D. is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 52% of them.

  • NPI issued2011 · 52% of these records are older, 45% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2010 · median 2008 among the 4,208 with a school on file
  • Record last updated2022 · 56% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

750 internal medicine physician records list a practice address in Pittsburgh

They are 750 of the 28,866 NPPES records with a practice address in Pittsburgh, and 7,300 internal medicine physician records in Pennsylvania.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Frank Brown, MDPittsburgh, PA 152321922070622
  2. David DemoisePittsburgh, PA 152321174623656
  3. Ellen Dillinger, MDPittsburgh, PA 152321326141995
  4. Michelina Fato, M.D.Pittsburgh, PA 152321790748721
  5. George Gleeson, MDPittsburgh, PA 152321881797454
  6. Thomas Grau, M.D.Pittsburgh, PA 152321366476889
  7. Bernadette HarrisPittsburgh, PA 152321700878774
  8. Elmer Holzinger, MDPittsburgh, PA 152321841393428

Common questions

What is David Chao, M.D.'s NPI number?

David Chao, M.D.'s National Provider Identifier (NPI) is 1720371073, issued on May 19, 2011. An NPI identifies a provider in billing; it is not a license.

Where is David Chao, M.D. located?

The NPPES record lists a practice address at 5230 Centre Ave, Pittsburgh, PA, 15232. Phone: (408) 569-5663. Providers update this record themselves, so call before visiting.

How can I verify David Chao, M.D.'s license?

Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does David Chao, M.D. prescribe under Medicare Part D?

In 2024, David Chao, M.D. had 521 Medicare Part D claims for 316 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.