NPPES file of Aug 9, 2026

Jessica Blair Lydiard, M.D.

Psychiatry Physician · San Diego, CA

Jessica Blair Lydiard, M.D. is a psychiatry physician with a practice address in San Diego, California, and NPI 1841731296, issued on Mar 19, 2017. Check the license (California A171775, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1841731296
Name
Jessica Blair Lydiard
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A171775 CA
Self-reported in NPPES; status is on the state search
Practice location
4094 4TH Ave, San Diego, CA 92103
Phone
(305) 355-8128
Enumerated
Mar 19, 2017
Record last updated
Feb 1, 2022
Medicare enrollment
Enrolled (PECOS I20260102002127); may accept Medicare assignment
Medical or professional school
Medical University Of South Carolina College Of Medicine, 2017
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →

Also registered at 4094 4TH Ave

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

  1. Susan AllenMarriage & Family Therapist1780939470
  2. Jennifer Asuncion, LCSWClinical Social Worker1083056279
  3. Renaldo Barrios, NPAdult Health Nurse Practitioner1609865740
  4. Donald Beeler, NPFamily Nurse Practitioner1356705529
  5. Lisa Benton, ARNPFamily Nurse Practitioner1487933545
  6. Chase Billotte, DPTPhysical Therapist1689064214

Verify Jessica Blair Lydiard in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A171775    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.

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Jessica Blair Lydiard among 8,673 psychiatry physician records in California

Jessica Blair Lydiard, 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 not. Its NPI, issued in 2017, is newer than 79% of them.

  • NPI issued2017 · 79% of these records are older, 18% newer
  • In a Medicare fileNo · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated2017 · median 2005 among the 3,295 with a school on file
  • Record last updated2022 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 8,673 in California → Every provider in San Diego → Psychiatry Physician nationwide →

The 8 psychiatry physician records with the nearest ZIP codes

  1. Olga Becker, M.D.San Diego, CA 921031083644710
  2. Tahir Bhatti, M.D.San Diego, CA 921031518915487
  3. Gregory Bishop, M.D.San Diego, CA 921031003855545
  4. Joel Dimsdale, M.D.San Diego, CA 921031306877568
  5. Jeremy Hirst, M.D.San Diego, CA 921031073563714
  6. Katherine Immerman, M.D.San Diego, CA 921031023087939
  7. Walter Kaye, MDSan Diego, CA 921031922076223
  8. John Kelsoe, M.D.San Diego, CA 921031184672156

Common questions

What is Jessica Blair Lydiard, M.D.'s NPI number?

Jessica Blair Lydiard, M.D.'s National Provider Identifier (NPI) is 1841731296, issued on Mar 19, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Jessica Blair Lydiard, M.D. located?

The NPPES record lists a practice address at 4094 4TH Ave, San Diego, CA, 92103. Phone: (305) 355-8128. Providers update this record themselves, so call before visiting.

How can I verify Jessica Blair Lydiard, M.D.'s license?

NPPES lists California license number A171775, 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. 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.