Gregory S. Haas, PHARM D
Pharmacist · San Rafael, CA
Gregory S. Haas, PHARM D is a pharmacist with a practice address in San Rafael, California, and NPI 1407156037, issued on Oct 29, 2010. Check the license (California RPH 61951, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory S. Haas
- Credential
- PHARM D
- Primary taxonomy
- Pharmacist 183500000X
- License number
- RPH 61951 CA
Self-reported in NPPES; status is on the state search - Practice location
- 950 Las Gallinas, San Rafael, CA 94903
- Phone
- (415) 472-8221
- Enumerated
- Oct 29, 2010
- Record last updated
- Oct 29, 2010 (not updated in 16 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 32,533 in California → Look up another NPI →
Verify Gregory S. Haas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license RPH 61951Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Most of these Medicare Part D claims are vaccines, 96% of the cost of the top drugs
220 Medicare Part D claims for 187 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.
Most prescribed
Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.
- Arexvy77 claims
- Shingrix59 claims
- Boostrix Tdap30 claims
- Abrysvo28 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.
Gregory S. Haas among 32,533 pharmacist records in California
Gregory S. Haas, PHARM D is one of 32,533 pharmacist records with a practice address in California. 15% 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 12% of them.
- NPI issued2010 · 12% of these records are older, 82% newer
- In a Medicare fileYes · 15% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2010 · 76% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 183500000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
120 pharmacist records list a practice address in San Rafael
They are 120 of the 3,159 NPPES records with a practice address in San Rafael, and 32,533 pharmacist records in California.
All 32,533 in California → Every provider in San Rafael → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Larry CacaceSan Rafael, CA 949031083773188
- Miranda Chin, PHARM.D.San Rafael, CA 949031992876296
- Lori Chudacoff, PHARMDSan Rafael, CA 949031639241987
- David Ferry, PHARM.DSan Rafael, CA 949031083700173
- Susan Gess, PHARM.D.San Rafael, CA 949031366536369
- Stephanie Hanton, PHARM.D.San Rafael, CA 949031316026487
- Andrea Johnson, PHARM.D.San Rafael, CA 949031487714101
- Jennifer Lai, M.SC., PHARM.D.San Rafael, CA 949031710066709
Common questions
What is Gregory S. Haas, PHARM D's NPI number?
Gregory S. Haas, PHARM D's National Provider Identifier (NPI) is 1407156037, issued on Oct 29, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Gregory S. Haas, PHARM D located?
The NPPES record lists a practice address at 950 Las Gallinas, San Rafael, CA, 94903. Phone: (415) 472-8221. Providers update this record themselves, so call before visiting.
How can I verify Gregory S. Haas, PHARM D's license?
NPPES lists California license number RPH 61951, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Gregory S. Haas, PHARM D prescribe under Medicare Part D?
In 2024, Gregory S. Haas, PHARM D had 220 Medicare Part D claims for 187 beneficiaries; the average among pharmacist prescribers was 119. 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.