NPPES file of Aug 9, 2026

Lisa Christine Gertridge, FNP-BC

Nurse Practitioner · San Francisco, CA

Lisa Christine Gertridge, FNP-BC is a nurse practitioner with a practice address in San Francisco, California, and NPI 1245968668, issued on Aug 12, 2022. Check the license (California 95022209, as entered in NPPES) with the California board that licenses this profession; 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
1245968668
Name
Lisa Christine Gertridge
Credential
FNP-BC
Primary taxonomy
Nurse Practitioner 363L00000X
License number
95022209 CA
Self-reported in NPPES; status is on the state search
Practice location
595 Castro St, San Francisco, CA 94114
Phone
(888) 663-6331
Enumerated
Aug 12, 2022
Record last updated
Jul 3, 2025
Fax
(415) 252-7176
Medicare enrollment
Enrolled (PECOS I20220915000546); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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Also registered at 595 Castro St

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

  1. Mark Berman, M.D.Internal Medicine Physician1285763789
  2. Martin Kramer, PA-CPhysician Assistant1710001649
  3. Khadjia Lobo, FNPFamily Nurse Practitioner1144867557
  4. Michael Ohkura, MDFamily Medicine Physician1992202808
  5. Travis Smith, DMDGeneral Practice Dentistry1942681762

Verify Lisa Christine Gertridge in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 95022209    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
Find the California license search

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91% fewer Medicare Part D claims than the average nurse practitioner in 2024

103 Medicare Part D claims for 20 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.

  1. Lisa Gertridge103
  2. Specialty average1,109

Most prescribed

  1. Levothyroxine Sodium11 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.

Bills Medicare through one group practice

  1. One Medical Group IncSan Francisco, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Nurse Practitioner providers in California

There are 8,223 nurse practitioner records in California.

All 8,223 in California → Every provider in San Francisco →

Other nurse practitioner records in California

  1. Barbara Aaronson, RN/NURSE PRACTITONERLos Angeles, CA1588988182
  2. Albert Aba, AGNPSan Francisco, CA1578353777
  3. Martha Ababneh, CNAEl Monte, CA1275118614
  4. Maria Katrina Abad, AGPCNP-BCSan Carlos, CA1306394952
  5. Shayda Abadi, NPPalo Alto, CA1316745540
  6. Jessika Abarca, NPSan Fernando, CA1972263945
  7. Hangama Abassi, N.P.Walnut Creek, CA1487083655
  8. Elizabeth Abaunza, NPSan Francisco, CA1962044347
  9. Honeylynn Abaya, NPMoreno Valley, CA1528799145
  10. Tara Abbondanza, NPArcadia, CA1730355173

Common questions

What is Lisa Christine Gertridge, FNP-BC's NPI number?

Lisa Christine Gertridge, FNP-BC's National Provider Identifier (NPI) is 1245968668, issued on Aug 12, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Lisa Christine Gertridge, FNP-BC located?

The NPPES record lists a practice address at 595 Castro St, San Francisco, CA, 94114. Phone: (888) 663-6331. Providers update this record themselves, so call before visiting.

How can I verify Lisa Christine Gertridge, FNP-BC's license?

NPPES lists California license number 95022209, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Lisa Christine Gertridge, FNP-BC prescribe under Medicare Part D?

In 2024, Lisa Christine Gertridge, FNP-BC had 103 Medicare Part D claims for 20 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.