NPPES file of Aug 9, 2026

Xiao Yang, M.D.

Internal Medicine Physician · Pittsburg, CA

Xiao Yang, M.D. is an internal medicine physician with a practice address in Pittsburg, California, and NPI 1548220304, issued on Mar 24, 2006. Check the license (California A94954, as entered in NPPES) on the Medical Board of California; 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
1548220304
Name
Xiao Yang
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
A94954 CA
0430644 KS
Self-reported in NPPES; status is on the state search
Practice location
2260 Gladstone Dr Ste 8, Pittsburg, CA 94565
Phone
(925) 301-8487
Enumerated
Mar 24, 2006
Record last updated
Feb 18, 2026
Fax
(925) 301-8268
Medicaid ID
200263840A KS
Medicare enrollment
Enrolled (PECOS I20090302000623); 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.
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Also registered at 2260 Gladstone Dr Ste 8

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

  1. Barsam Gharagozlou, M.D.Pediatrics Physician1508108986

Verify Xiao Yang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A94954
    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 California license search

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14% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,740 Medicare Part D claims for 217 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. Xiao Yang2,740
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium294 claims
  2. Metformin Hcl193 claims
  3. Amlodipine Besylate191 claims
  4. Losartan Potassium124 claims
  5. Alendronate Sodium117 claims
  6. Jardiance106 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.

Xiao Yang among 17,696 internal medicine physician records in California

Xiao Yang, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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, 56% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1988 · median 2004 among the 11,065 with a school on file
  • Record last updated2026 · 61% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

11 internal medicine physician records list a practice address in Pittsburg

They are 11 of the 593 NPPES records with a practice address in Pittsburg, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Pacita Aducayen, M.D.Pittsburg, CA 945651851307219
  2. Galicano Andal, M.D.Pittsburg, CA 945651437263571
  3. Kate Christensen, MDPittsburg, CA 945651356427884
  4. John Gallo, DOPittsburg, CA 945651558446229
  5. Sara Jaka, MDPittsburg, CA 945651760989222
  6. Dong Hoon Lee, M.D.Pittsburg, CA 945651174854038
  7. Shalini Madugundi, M.DPittsburg, CA 945651154635506
  8. Michael Russell, M.D.Pittsburg, CA 945651578615316

Common questions

What is Xiao Yang, M.D.'s NPI number?

Xiao Yang, M.D.'s National Provider Identifier (NPI) is 1548220304, issued on Mar 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Xiao Yang, M.D. located?

The NPPES record lists a practice address at 2260 Gladstone Dr Ste 8, Pittsburg, CA, 94565. Phone: (925) 301-8487. Providers update this record themselves, so call before visiting.

How can I verify Xiao Yang, M.D.'s license?

NPPES lists California license number A94954, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Xiao Yang, M.D. prescribe under Medicare Part D?

In 2024, Xiao Yang, M.D. had 2,740 Medicare Part D claims for 217 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.