Cong Zhou Santoso, M.D.
Internal Medicine Physician · Fairfield, CA
Cong Zhou Santoso, M.D. is an internal medicine physician with a practice address in Fairfield, California, and NPI 1659613057, issued on Mar 23, 2013. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Cong Zhou Santoso
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 0101257154 VA
Self-reported in NPPES; status is on the state search - Practice location
- 101 Bodin Cir, Fairfield, CA 94535
- Phone
- (707) 423-7342
- Enumerated
- Mar 23, 2013
- Record last updated
- Dec 21, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 101 Bodin Cir
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Artemio Alanis, PHARMDOncology Pharmacist1396513982
- Traci Allen, RNCase Management Registered Nurse1669292132
- Rachel Anderson, MDAnesthesiology Physician1942730072
- Eugene Asabor, DDSDentist1568300242
- Savannah Bahls, DOMilitary Health Care Provider1619764008
Verify Cong Zhou Santoso in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
40 Medicare Part D claims for 32 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Cong Zhou Santoso among 17,696 internal medicine physician records in California
Cong Zhou Santoso, 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 2013, is newer than 71% of them.
- NPI issued2013 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2021 · 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).
54 internal medicine physician records list a practice address in Fairfield
They are 54 of the 3,595 NPPES records with a practice address in Fairfield, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Fairfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Allan Andres, M.D.Travis Afb, CA 945351114176161
- Myo Chang, MDFairfield, CA 945351003899279
- Maria Conley, MDFairfield, CA 945351093838872
- Christopher Dennis, D.O.Travis Afb, CA 945351780611723
- James Doyle, M.D.Travis Afb, CA 945351316053424
- George Estes, M.D.Travis Afb, CA 945351346332095
- Elizabeth Fernandes, MDFairfield, CA 945351043398134
- Aikkachai Jiras, M.D.Travis Afb, CA 945351225198955
Common questions
What is Cong Zhou Santoso, M.D.'s NPI number?
Cong Zhou Santoso, M.D.'s National Provider Identifier (NPI) is 1659613057, issued on Mar 23, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Cong Zhou Santoso, M.D. located?
The NPPES record lists a practice address at 101 Bodin Cir, Fairfield, CA, 94535. Phone: (707) 423-7342. Providers update this record themselves, so call before visiting.
How can I verify Cong Zhou Santoso, M.D.'s license?
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 Cong Zhou Santoso, M.D. prescribe under Medicare Part D?
In 2024, Cong Zhou Santoso, M.D. had 40 Medicare Part D claims for 32 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.