Joan Omahony, NP
Nurse Practitioner · San Francisco, CA
Joan Omahony, NP is a nurse practitioner with a practice address in San Francisco, California, and NPI 1588816656, issued on Oct 21, 2008. Check the license (California 15305, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Joan Omahony
- Credential
- NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 15305 CA
Self-reported in NPPES; status is on the state search - Practice location
- 500 Parnassus Ave, San Francisco, CA 94143
- Phone
- (415) 353-1606
- Enumerated
- Oct 21, 2008
- Record last updated
- May 8, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (415) 353-1312
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Also registered at 500 Parnassus Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Joan Omahony in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 15305Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average nurse practitioner in 2024
103 Medicare Part D claims for 42 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 43 claims were for opioids.
Most prescribed
- Gabapentin45 claims
- Oxycodone Hcl36 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: $124.31
1 payment: food and beverage; the largest payer was Lilly USA, LLC. The 38,884 providers of this specialty with any payment received $791.64 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.
Joan Omahony among 8,223 nurse practitioner records in California
Joan Omahony, NP is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 27% of them.
- NPI issued2008 · 27% of these records are older, 70% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 42% of these records are
- Record last updated2019 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nurse Practitioner providers in California
There are 8,223 nurse practitioner records in California.
All 8,223 in California → Every provider in San Francisco → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Rosalie Bravo, RN, NPSan Francisco, CA 941431740224690
- Mitchel Erickson, NPSan Francisco, CA 941431851330260
- Caroline Farless, NPSan Francisco, CA 941431720034960
- Colleen Irwin, NPSan Francisco, CA 941431316984362
- Susan Janson, DNSCSan Francisco, CA 941431437197597
- Peter Knott, RN, MSNSan Francisco, CA 941431295774602
- Geoffrey Latham, RN, NPSan Francisco, CA 941431356395842
- Sarah Maclachlan, FNPSan Francisco, CA 941431972540946
Common questions
What is Joan Omahony, NP's NPI number?
Joan Omahony, NP's National Provider Identifier (NPI) is 1588816656, issued on Oct 21, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Joan Omahony, NP located?
The NPPES record lists a practice address at 500 Parnassus Ave, San Francisco, CA, 94143. Phone: (415) 353-1606. Providers update this record themselves, so call before visiting.
How can I verify Joan Omahony, NP's license?
NPPES lists California license number 15305, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Joan Omahony, NP prescribe under Medicare Part D?
In 2024, Joan Omahony, NP had 103 Medicare Part D claims for 42 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.