Mary Petrofsky, NP
Acute Care Nurse Practitioner · San Francisco, CA
Mary Petrofsky, NP is an acute care nurse practitioner with a practice address in San Francisco, California, and NPI 1013220359, issued on Jul 15, 2010. Check the license (California NP 18337, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Petrofsky
- Credential
- NP
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License number
- NP 18337 CA
Self-reported in NPPES; status is on the state search - Practice location
- 505 Parnassus Ave RM M1286, San Francisco, CA 94143
- Phone
- (415) 527-8322
- Enumerated
- Jul 15, 2010
- Record last updated
- Aug 6, 2023
- Fax
- (415) 476-0624
- Medicare enrollment
- Enrolled (PECOS I20110114001030); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest acute care nurse practitioner records → All 1,810 in California → Look up another NPI →
Verify Mary Petrofsky in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license NP 18337Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024
11 Medicare Part D claims, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Industry payments in 2024: $27.10
1 payment: food and beverage; the largest payer was Lilly USA, LLC. The 10,984 providers of this specialty with any payment received $647.94 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Regents OF The University OF CaliforniaSan Francisco, CA
- Ucsf Medical Group Business ServicesBurlingame, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Petrofsky among 1,810 acute care nurse practitioner records in California
Mary Petrofsky, NP 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 2010, is newer than 15% of them.
- NPI issued2010 · 15% of these records are older, 82% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2008 · median 2018 among the 993 with a school on file
- Record last updated2023 · 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
- Christopher Acebedo, NPSan Francisco, CA 941431104085109
- Maureen Mary Arriola, NPSan Francisco, CA 941431063656122
- Marlene BurtSan Francisco, CA 941431740482405
- Thomas Farley, NP MSNSan Francisco, CA 941431629100656
- Cana Jenkins, RN, ACNPSan Francisco, CA 941431427295070
- Kenneth Johnson, N.P.San Francisco, CA 941431598956856
- Carl Kulpa, DNP, ANP-BC, ACNP-BCSan Francisco, CA 941431073846044
- Lesha McPeak, NPSan Francisco, CA 941431568777308
Common questions
What is Mary Petrofsky, NP's NPI number?
Mary Petrofsky, NP's National Provider Identifier (NPI) is 1013220359, issued on Jul 15, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Mary Petrofsky, NP located?
The NPPES record lists a practice address at 505 Parnassus Ave RM M1286, San Francisco, CA, 94143. Phone: (415) 527-8322. Providers update this record themselves, so call before visiting.
How can I verify Mary Petrofsky, NP's license?
NPPES lists California license number NP 18337, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Petrofsky, NP prescribe under Medicare Part D?
In 2024, Mary Petrofsky, NP had 11 Medicare Part D claims; the average among acute care nurse practitioner prescribers was 594. 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.
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.