Jack Diggs
Specialist · San Francisco, CA
Jack Diggs is a specialist with a practice address in San Francisco, California, and NPI 1427290865, issued on Mar 31, 2009. Check the license with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Jack Diggs
- Primary taxonomy
- Specialist 174400000X
- Practice location
- 484 Oak St, San Francisco, CA 94102
- Phone
- (415) 626-5199
- Enumerated
- Mar 31, 2009
- Record last updated
- Feb 9, 2015 (not updated in 11 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 484 Oak St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maria Arana OconDay Training/Habilitation Specialist1306665591
- Horace ButlerCase Manager/Care Coordinator1104034347
- Lisa ButlerCommunity Health Worker1851709364
- Peter GolbetzCounselor1871766634
- Sean Kennedy, LCSWSocial Worker1033581913
- Kandi McFarlandDay Training/Habilitation Specialist1194513903
Verify Jack Diggs in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Jack Diggs among 5,749 specialist records in California
Jack Diggs is one of 5,749 specialist records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2009, is newer than 60% of them.
- NPI issued2009 · 60% of these records are older, 38% newer
- In a Medicare fileNo · 30% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2015 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
666 specialist records list a practice address in San Francisco
They are 666 of the 38,143 NPPES records with a practice address in San Francisco, and 5,749 specialist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 5,749 in California → Every provider in San Francisco → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Margaret AndujaSan Francisco, CA 941021326312497
- Monica Dahlem, MDSan Francisco, CA 941021821175878
- Robert Herwick, MDSan Francisco, CA 941021437236452
- Michael ImpresciaSan Francisco, CA 941021144594219
- Seth Matarasso, MDSan Francisco, CA 941021992882948
- Julie McGeeSan Francisco, CA 941021144491978
- Jennifer NguyenSan Francisco, CA 941021518231687
- Denise RoseSan Francisco, CA 941021417221599
Common questions
What is Jack Diggs's NPI number?
Jack Diggs's National Provider Identifier (NPI) is 1427290865, issued on Mar 31, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Jack Diggs located?
The NPPES record lists a practice address at 484 Oak St, San Francisco, CA, 94102. Phone: (415) 626-5199. Providers update this record themselves, so call before visiting.
How can I verify Jack Diggs's license?
Search the California board that licenses this profession; the NPPES record confirms identity 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. 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.