NPPES file of Aug 9, 2026

Chuan Fang Shih, M.D.

Internal Medicine Physician · Fremont, CA

Chuan Fang Shih, M.D. is an internal medicine physician with a practice address in Fremont, California, and NPI 1578594073, issued on Jul 5, 2006. Check the license (California A88179, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1578594073
Name
Chuan Fang Shih
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A88179 CA
Self-reported in NPPES; status is on the state search
Practice location
1860 Mowry Ave, Fremont, CA 94538
Phone
(510) 790-2202
Enumerated
Jul 5, 2006
Record last updated
May 25, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(510) 790-2806
Medicare enrollment
Enrolled (PECOS I20051214000698); 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 1860 Mowry Ave

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

  1. Albert Brooks, M.D.Obstetrics & Gynecology Physician1568514891
  2. Sharon Dewit, MDNuclear Medicine Physician1881656957
  3. Romesh Japra, M.D.Cardiovascular Disease Physician1144250184
  4. Ramesh Karipineni, MDSurgery Physician1376543413
  5. Raghu KatragaddaAnesthesiology Physician1851391833
  6. Scott Mack, M.D.Obstetrics & Gynecology Physician1003860073

Verify Chuan Fang Shih in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A88179
    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

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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26% more Medicare Part D claims than the average internal medicine physician in 2024

3,999 Medicare Part D claims for 378 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 22 claims were for opioids.

  1. Chuan Fang Shih3,999
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium598 claims
  2. Amlodipine Besylate318 claims
  3. Losartan Potassium243 claims
  4. Metformin Hcl207 claims
  5. Rosuvastatin Calcium147 claims
  6. Alendronate Sodium124 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 97.7 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score81.8
  2. Costout of 100 · 30%100.0
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $1,790.83

21 payments; by number, the most common kind was food and beverage; the largest payer was Teva Pharmaceuticals USA, 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. Chuan Fang Shih$1,790.83
  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. Asian HealthlinkFremont, CA

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

Chuan Fang Shih among 17,696 internal medicine physician records in California

Chuan Fang Shih, 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
  • Graduated1984 · median 2004 among the 11,065 with a school on file
  • Record last updated2016 · 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).

125 internal medicine physician records list a practice address in Fremont

They are 125 of the 4,749 NPPES records with a practice address in Fremont, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Zulfiqar Ali, M.DFremont, CA 945381093740227
  2. Bala Annadurai, M.D.Fremont, CA 945381033100516
  3. Ashwani Bindal, MDFremont, CA 945381265406318
  4. Yih Chang, M.D.Fremont, CA 945381174506380
  5. John Giddens, MDFremont, CA 945381417934803
  6. Satyasree Konda, M.D.Fremont, CA 945381306880679
  7. Padmavathi Kudaravalli, MDFremont, CA 945381144221953
  8. Suresh Mahawar, MDFremont, CA 945381033154893

Common questions

What is Chuan Fang Shih, M.D.'s NPI number?

Chuan Fang Shih, M.D.'s National Provider Identifier (NPI) is 1578594073, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Chuan Fang Shih, M.D. located?

The NPPES record lists a practice address at 1860 Mowry Ave, Fremont, CA, 94538. Phone: (510) 790-2202. Providers update this record themselves, so call before visiting.

How can I verify Chuan Fang Shih, M.D.'s license?

NPPES lists California license number A88179, 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 Chuan Fang Shih, M.D. prescribe under Medicare Part D?

In 2024, Chuan Fang Shih, M.D. had 3,999 Medicare Part D claims for 378 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Chuan Fang Shih, M.D.'s MIPS final score?

The 2023 MIPS final score is 97.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.