Hilary Johnston, PA-C, MMS
NPI 1649626177 · Medical Physician Assistant · San Bruno, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hilary Johnston, PA-C, MMS is a Medical Physician Assistant provider in San Bruno, CA (NPI 1649626177).
Provider details
- NPI number
- 1649626177
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C, MMS
- Sex
- Female
- Sole proprietor
- No
- License
- 53387 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Mupirocin | 42 | 25 |
| Betamethasone/Propylene Glycbrand: Betamethasone Diprop Augmented | 40 | 26 |
| Clobetasol Propionate | 39 | 15 |
| Metronidazole | 28 | 11 |
| Tacrolimus | 28 | 19 |
| Ketoconazole | 25 | 11 |
| Fluocinonide | 20 | 14 |
| Hydrocortisone | 20 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-05-13
- Last updated
- 2022-01-03
- Certified
- 2021-11-11
Frequently asked questions
- What is Hilary Johnston's NPI number?
- Hilary Johnston's National Provider Identifier (NPI) is 1649626177, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hilary Johnston's specialty?
- Hilary Johnston is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Hilary Johnston located?
- Hilary Johnston's practice location on file with NPPES is 801 Traeger Ave Ste 310, San Bruno, CA 94066-3048.
- What is Hilary Johnston's phone number?
- The practice phone number listed in the NPPES registry for Hilary Johnston is (650) 742-5969.
- Does Hilary Johnston accept Medicare?
- Hilary Johnston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hilary Johnston's NPI active?
- Yes — Hilary Johnston's NPI (1649626177) is active in the NPPES registry as of the last update on 2022-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.