NPPES file of Aug 9, 2026

Shea Kelsey Harmon Williams

Acute Care Nurse Practitioner · San Francisco, CA

Shea Kelsey Harmon Williams is an acute care nurse practitioner with a practice address in San Francisco, California, and NPI 1801613450, issued on Sep 24, 2024. Check the license (California 363LA2100X, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801613450
Name
Shea Kelsey Harmon Williams
Primary taxonomy
Acute Care Nurse Practitioner 363LA2100X
License number
363LA2100X CA
Self-reported in NPPES; status is on the state search
Practice location
505 Parnassus Ave, San Francisco, CA 94143
Phone
(415) 476-1000
Enumerated
Sep 24, 2024
Record last updated
Sep 24, 2024
Medicare enrollment
Enrolled (PECOS I20241017003678); accepts Medicare assignment
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 acute care nurse practitioner records → All 1,810 in California → Look up another NPI →

Also registered at 505 Parnassus Ave

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

  1. Alexander Aabedi, MDStudent in an Organized Health Care Education/Training Program1245971480
  2. Kathryn Aaronson, RN, CPNPPediatric Nurse Practitioner1992030951
  3. Sharon AbadaStudent in an Organized Health Care Education/Training Program1003492844
  4. Abul Abbas, MBBSAnatomic Pathology Physician1881652964
  5. Jesse Abelson, MDInternal Medicine Physician1083843817
  6. Rhonald AbitonaAcute Care Nurse Practitioner1164993473

Verify Shea Kelsey Harmon Williams 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 363LA2100X    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

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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Bills Medicare through one group practice

  1. University Anesthesia Medical GroupSan Francisco, CA

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

Shea Kelsey Harmon Williams among 1,810 acute care nurse practitioner records in California

Shea Kelsey Harmon Williams is one of 1,810 acute care nurse practitioner records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2024, is newer than 83% of them.

  • NPI issued2024 · 83% of these records are older, 10% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated2024 · median 2018 among the 993 with a school on file
  • Record last updated2024 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Acute Care Nurse Practitioner providers in California

There are 1,810 acute care nurse practitioner records in California.

All 1,810 in California → Every provider in San Francisco → Acute Care Nurse Practitioner nationwide →

The 8 acute care nurse practitioner records with the nearest ZIP codes

  1. Christopher Acebedo, NPSan Francisco, CA 941431104085109
  2. Maureen Mary Arriola, NPSan Francisco, CA 941431063656122
  3. Marlene BurtSan Francisco, CA 941431740482405
  4. Thomas Farley, NP MSNSan Francisco, CA 941431629100656
  5. Cana Jenkins, RN, ACNPSan Francisco, CA 941431427295070
  6. Kenneth Johnson, N.P.San Francisco, CA 941431598956856
  7. Carl Kulpa, DNP, ANP-BC, ACNP-BCSan Francisco, CA 941431073846044
  8. Lesha McPeak, NPSan Francisco, CA 941431568777308

Common questions

What is Shea Kelsey Harmon Williams's NPI number?

Shea Kelsey Harmon Williams's National Provider Identifier (NPI) is 1801613450, issued on Sep 24, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Shea Kelsey Harmon Williams located?

The NPPES record lists a practice address at 505 Parnassus Ave, San Francisco, CA, 94143. Phone: (415) 476-1000. Providers update this record themselves, so call before visiting.

How can I verify Shea Kelsey Harmon Williams's license?

NPPES lists California license number 363LA2100X, as entered by the provider. 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. 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.