Jack Yacoo, M.D.
Hospitalist Physician · San Diego, CA
Jack Yacoo, M.D. is a hospitalist physician with a practice address in San Diego, California, and NPI 1588915730, issued on Sep 27, 2012. Check the license (California A125539, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jack Yacoo
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A125539 CA
Self-reported in NPPES; status is on the state search - Practice location
- 7901 Frost St, San Diego, CA 92123
- Phone
- (858) 939-3400
- Enumerated
- Sep 27, 2012
- Record last updated
- Jul 3, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20140724002340); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Human Medicine, 2011
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 7901 Frost St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aileen Afshar, MDInternal Medicine Physician1134689946
- Saad Alkhider, MDInternal Medicine Physician1447712062
- Mustafa Alwash, M.DHospitalist Physician1679936439
- Alexandra Anjier, MDEmergency Medicine Physician1467087510
- Anna Astashchanka, MDPulmonary Disease Physician1821594359
- Amir Bahreman, M.D.Internal Medicine Physician1124249388
Verify Jack Yacoo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A125539Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average hospitalist physician in 2024
44 Medicare Part D claims, against an average of 521 among the 21,613 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.
Bills Medicare through 2 group practices
- Emergency And Acute Care Medical CorporationSan Diego, CA
- Focus ON Health IncSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jack Yacoo among 3,099 hospitalist physician records in California
Jack Yacoo, M.D. is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 51% of them.
- NPI issued2012 · 51% of these records are older, 44% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2011 · median 2010 among the 2,505 with a school on file
- Record last updated2014 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in San Diego → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Kalpana Chalasani, M.D.San Diego, CA 921231467560920
- Trung Dang, M.D.San Diego, CA 921231275543670
- Brent Drouin, M.D.San Diego, CA 921231356351555
- Yevgeniy Grobman, MDSan Diego, CA 921231295050243
- Robert Holmes, MDSan Diego, CA 921231962493841
- Arturo Lara Llerena, MDSan Diego, CA 921231538501721
- Brian Lichtenstein, M.D.San Diego, CA 921231205142908
- Ton Ngo, MDSan Diego, CA 921231427007988
Common questions
What is Jack Yacoo, M.D.'s NPI number?
Jack Yacoo, M.D.'s National Provider Identifier (NPI) is 1588915730, issued on Sep 27, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Jack Yacoo, M.D. located?
The NPPES record lists a practice address at 7901 Frost St, San Diego, CA, 92123. Phone: (858) 939-3400. Providers update this record themselves, so call before visiting.
How can I verify Jack Yacoo, M.D.'s license?
NPPES lists California license number A125539, 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 Jack Yacoo, M.D. prescribe under Medicare Part D?
In 2024, Jack Yacoo, M.D. had 44 Medicare Part D claims; the average among hospitalist physician prescribers was 521. 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.