Jaco Fishenfeld, MD
Internal Medicine Physician · San Jose, CA
Jaco Fishenfeld, MD is an internal medicine physician with a practice address in San Jose, California, and NPI 1689639577, issued on Apr 20, 2006. Check the license (California A25575, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jaco Fishenfeld
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A25575 CA
Self-reported in NPPES; status is on the state search - Practice location
- 150 N Jackson Avenue, San Jose, CA 95116
- Phone
- (408) 926-2200
- Enumerated
- Apr 20, 2006
- Record last updated
- Nov 17, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (408) 926-6876
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 150 N Jackson Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bailey V Vittal, MDGastroenterology Physician1477594604
Verify Jaco Fishenfeld in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A25575Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $121.31
1 payment: food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Jaco Fishenfeld among 17,696 internal medicine physician records in California
Jaco Fishenfeld, MD 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 fileNo · 63% of these records are
- Record last updated2009 · 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).
428 internal medicine physician records list a practice address in San Jose
They are 428 of the 20,925 NPPES records with a practice address in San Jose, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Jose → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Komal Bhatt, MDSan Jose, CA 951161003824699
- Richard Cathey, M.D.San Jose, CA 951161750343323
- Dinh Dam, M.D.San Jose, CA 951161518936616
- Jose Maria Guanzon, MDSan Jose, CA 951161134150881
- Teresita Guanzon, MDSan Jose, CA 951161306877055
- Dwight Lim, MDSan Jose, CA 951161124084561
- Syed Majid, MD, FRCP, FASAMSan Jose, CA 951161225009533
- Vinh Nguyen, M.D.San Jose, CA 951161720086556
Common questions
What is Jaco Fishenfeld, MD's NPI number?
Jaco Fishenfeld, MD's National Provider Identifier (NPI) is 1689639577, issued on Apr 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jaco Fishenfeld, MD located?
The NPPES record lists a practice address at 150 N Jackson Avenue, San Jose, CA, 95116. Phone: (408) 926-2200. Providers update this record themselves, so call before visiting.
How can I verify Jaco Fishenfeld, MD's license?
NPPES lists California license number A25575, 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.
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.