Stephanie R. Collier, PA
Physician Assistant · San Francisco, CA
Stephanie R. Collier, PA is a physician assistant with a practice address in San Francisco, California, and NPI 1861673436, issued on Nov 23, 2007. Check the license (California PA54447, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Stephanie R. Collier
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- PA54447 CA
PA01910 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1825 4TH St, San Francisco, CA 94143
- Phone
- (415) 353-7171
- Enumerated
- Nov 23, 2007
- Record last updated
- Aug 2, 2023
- Medicaid IDs
- 192005001 TX
192005002 TX - Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 1825 4TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Stephanie R. Collier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA54447Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average physician assistant in 2024
29 Medicare Part D claims for 18 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Tamsulosin Hcl13 claims
- Finasteride11 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Stephanie R. Collier among 14,451 physician assistant records in California
Stephanie R. Collier, PA is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 13% of them.
- NPI issued2007 · 13% of these records are older, 78% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2023 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Physician Assistant providers in California
There are 14,451 physician assistant records in California.
All 14,451 in California → Every provider in San Francisco → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Eliana Agudelo, PASan Francisco, CA 941431982646386
- Crystal Bravate, PA-CSan Francisco, CA 941431043363765
- Douglas Chin, PASan Francisco, CA 941431558303560
- Robin Clark, PA CSan Francisco, CA 941431063403483
- Susan Uyen Huffstutter, PA-CSan Francisco, CA 941431346268901
- Cletus Ibe, PASan Francisco, CA 941431730334152
- Da Thao Neria, PA-CSan Francisco, CA 941431689780942
- Marcus Peterlin, P.A.San Francisco, CA 941431033201298
Common questions
What is Stephanie R. Collier, PA's NPI number?
Stephanie R. Collier, PA's National Provider Identifier (NPI) is 1861673436, issued on Nov 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Stephanie R. Collier, PA located?
The NPPES record lists a practice address at 1825 4TH St, San Francisco, CA, 94143. Phone: (415) 353-7171. Providers update this record themselves, so call before visiting.
How can I verify Stephanie R. Collier, PA's license?
NPPES lists California license number PA54447, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Stephanie R. Collier, PA prescribe under Medicare Part D?
In 2024, Stephanie R. Collier, PA had 29 Medicare Part D claims for 18 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Stephanie R. Collier, PA's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.
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.