Mary Froehlich, GNP
NPI 1023222551 · Nurse Practitioner · San Francisco, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Froehlich, GNP is a Nurse Practitioner provider in San Francisco, CA (NPI 1023222551).
Provider details
- NPI number
- 1023222551
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- GNP
- Sex
- Female
- Sole proprietor
- No
- License
- APN.0998278-NP (CO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 77 | 77 |
| Prednisone | 75 | 73 |
| Levothyroxine Sodium | 69 | 46 |
| Amoxicillin | 55 | 54 |
| Atorvastatin Calcium | 54 | 31 |
| Rosuvastatin Calcium | 53 | 31 |
| Albuterol Sulfate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$26 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-10
- Last updated
- 2025-04-18
- Certified
- 2025-04-18
Frequently asked questions
- What is Mary Froehlich's NPI number?
- Mary Froehlich's National Provider Identifier (NPI) is 1023222551, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Froehlich's specialty?
- Mary Froehlich is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Froehlich located?
- Mary Froehlich's practice location on file with NPPES is 1 Embarcadero Ctr Ste 1900, San Francisco, CA 94111-3723.
- What is Mary Froehlich's phone number?
- The practice phone number listed in the NPPES registry for Mary Froehlich is (888) 663-6331.
- Does Mary Froehlich accept Medicare?
- Mary Froehlich is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Froehlich's NPI active?
- Yes — Mary Froehlich's NPI (1023222551) is active in the NPPES registry as of the last update on 2025-04-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.