NPPES file of Aug 9, 2026

Jill Shannahan, M.D.

Psychiatry Physician · Santa Cruz, CA

Jill Shannahan, M.D. is a psychiatry physician with a practice address in Santa Cruz, California, and NPI 1467516005, issued on Dec 20, 2006. Check the license (California G83206, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1467516005
Name
Jill Shannahan
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
G83206 CA
Self-reported in NPPES; status is on the state search
Practice location
1400 Emeline Ave, Santa Cruz, CA 95060
Phone
(831) 454-4170
Enumerated
Dec 20, 2006
Record last updated
Mar 7, 2023
Fax
(831) 454-4663
Medicaid ID
00G832061 CA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →

Also registered at 1400 Emeline Ave

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

  1. Guadalupe AbundezMedical Physician Assistant1891401121
  2. Mariela Acevedo, MFTIMental Health Counselor1356869093
  3. David AdlerCounselor1407052970
  4. Esmeralda AlfaroAssistant Health Information Record Technician1003758715
  5. Sara AndersonMental Health Counselor1972856656
  6. Robert Annon, LCSClinical Social Worker1992730121

Verify Jill Shannahan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G83206    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

96% fewer Medicare Part D claims than the average psychiatry physician in 2024

40 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Jill Shannahan40
  2. Specialty average1,000

Most prescribed

  1. Olanzapine11 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.

Jill Shannahan among 8,673 psychiatry physician records in California

Jill Shannahan, M.D. is one of 8,673 psychiatry physician records with a practice address in California. 67% 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 2% of them.

  • NPI issued2006 · 2% of these records are older, 67% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 38% of these records are
  • Record last updated2023 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in California

There are 8,673 psychiatry physician records in California.

All 8,673 in California → Every provider in Santa Cruz → Psychiatry Physician nationwide →

The 8 psychiatry physician records with the nearest ZIP codes

  1. Ralph Berman, M DSanta Cruz, CA 950601306889795
  2. Michael Christie, M.D.Santa Cruz, CA 950601659486512
  3. John Gillette, M.D.Santa Cruz, CA 950601598756579
  4. David Hoban, MDSanta Cruz, CA 950601659325892
  5. Brinda Krishnan, M.D.,Santa Cruz, CA 950601114970076
  6. Barbara Lampert, MDSanta Cruz, CA 950601841200128
  7. Timothy Myers, MDSanta Cruz, CA 950601124030747
  8. Latha Nair, M.D.Santa Cruz, CA 950601164527560

Common questions

What is Jill Shannahan, M.D.'s NPI number?

Jill Shannahan, M.D.'s National Provider Identifier (NPI) is 1467516005, issued on Dec 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jill Shannahan, M.D. located?

The NPPES record lists a practice address at 1400 Emeline Ave, Santa Cruz, CA, 95060. Phone: (831) 454-4170. Providers update this record themselves, so call before visiting.

How can I verify Jill Shannahan, M.D.'s license?

NPPES lists California license number G83206, 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 Jill Shannahan, M.D. prescribe under Medicare Part D?

In 2024, Jill Shannahan, M.D. had 40 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.