William Guss, PHARM.D.
Pharmacist · Porter Ranch, CA
William Guss, PHARM.D. is a pharmacist with a practice address in Porter Ranch, California, and NPI 1841612231, issued on Jan 20, 2014. Check the license (California RPH 39648, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Guss
- Credential
- PHARM.D.
- Primary taxonomy
- Pharmacist 183500000X
- License numbers
- RPH 39648 CA
09181 NV
Self-reported in NPPES; status is on the state search - Practice location
- 20775 Lugano Way, Porter Ranch, CA 91326
- Phone
- (818) 882-8744
- Enumerated
- Jan 20, 2014
- Record last updated
- Jan 20, 2014 (not updated in 12 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 William Guss 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 39648Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Guss among 32,533 pharmacist records in California
William Guss, 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 not. Its NPI, issued in 2014, is newer than 35% of them.
- NPI issued2014 · 35% of these records are older, 59% newer
- In a Medicare fileNo · 15% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2014 · 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).
29 pharmacist records list a practice address in Porter Ranch
They are 29 of the 275 NPPES records with a practice address in Porter Ranch, and 32,533 pharmacist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 32,533 in California → Every provider in Porter Ranch → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Azadeh Bamshad, PHARM.D.Northridge, CA 913261477844512
- Philip Banks, PHARM.D.Porter Ranch, CA 913261902093552
- Jeffrey Barron, PHARMDPorter Ranch, CA 913261306115696
- Anna KaminskyNorthridge, CA 913261427449321
- Niramol Kitsawadi, PHARMACISTPorter Ranch, CA 913261699044875
- Maggie La, RPHPorter Ranch, CA 913261407249493
- Stephanie Lin, PHARMDPorter Ranch, CA 913261487062717
- Brandan Lombardo, PHARM.D.Porter Ranch, CA 913261144566886
Common questions
What is William Guss, PHARM.D.'s NPI number?
William Guss, PHARM.D.'s National Provider Identifier (NPI) is 1841612231, issued on Jan 20, 2014. An NPI identifies a provider in billing; it is not a license.
Where is William Guss, PHARM.D. located?
The NPPES record lists a practice address at 20775 Lugano Way, Porter Ranch, CA, 91326. Phone: (818) 882-8744. Providers update this record themselves, so call before visiting.
How can I verify William Guss, PHARM.D.'s license?
NPPES lists California license number RPH 39648, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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. 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.