Gautham S. Iyer, NP
Adult Health Nurse Practitioner · San Francisco, CA
Gautham S. Iyer, NP is an adult health nurse practitioner with a practice address in San Francisco, California, and NPI 1952534422, issued on Aug 31, 2009. Check the license (California 18360, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gautham S. Iyer
- Credential
- NP
- Primary taxonomy
- Adult Health Nurse Practitioner 363LA2200X
- License numbers
- 18360 CA
2009022049 MO
Self-reported in NPPES; status is on the state search - Practice location
- 500 Parnassus Ave, San Francisco, CA 94143
- Phone
- (573) 999-5365
- Enumerated
- Aug 31, 2009
- Record last updated
- May 7, 2024
- Medicare enrollment
- Enrolled (PECOS I20111228000428); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest adult health nurse practitioner records → All 1,405 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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- Abdullah Alshammari, MD, FRCSCOrthopaedic Surgery of the Spine Physician1437982477
- Gulsedef Arslan, DOStudent in an Organized Health Care Education/Training Program1891358297
- Peter Barish, M.D.Internal Medicine Physician1366861379
- Jeffrey Barry, MDOrthopaedic Surgery Physician1598031304
Verify Gautham S. Iyer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 18360Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024
433 Medicare Part D claims for 37 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Omeprazole50 claims
- Azithromycin44 claims
- Sulfamethoxazole-Trimethoprim42 claims
- Alendronate Sodium35 claims
- Rosuvastatin Calcium34 claims
- Valganciclovir Hcl32 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.
Bills Medicare through 2 group practices
- Regents OF The University OF CaliforniaSan Francisco, CA
- Ucsf Dept OF SurgerySan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gautham S. Iyer among 1,405 adult health nurse practitioner records in California
Gautham S. Iyer, NP is one of 1,405 adult health nurse practitioner records with a practice address in California. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 34% of them.
- NPI issued2009 · 34% of these records are older, 63% newer
- In a Medicare fileYes · 56% of these records are
- In the CMS Doctors and Clinicians fileYes · 31% of these records are
- Graduated2008 · median 2013 among the 441 with a school on file
- Record last updated2024 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Health Nurse Practitioner providers in California
There are 1,405 adult health nurse practitioner records in California.
All 1,405 in California → Every provider in San Francisco → Adult Health Nurse Practitioner nationwide →
The 8 adult health nurse practitioner records with the nearest ZIP codes
- Barbara Burgel, RN, PHD, NPSan Francisco, CA 941431467594028
- Rebecca Buti, ARNPSan Francisco, CA 941431023016524
- Geraldine Collins-Bride, NPSan Francisco, CA 941431225128465
- Kerry Decker, NPSan Francisco, CA 941431861680944
- Lois Anne Indorf, NURSE PRACTITIONERSan Francisco, CA 941431871777920
- Eleanor Lannen, RN, MS, CNPSan Francisco, CA 941431710108931
- Lisa McNey, N.PSan Francisco, CA 941431285722124
- Lisa Nelson, NPSan Francisco, CA 941431568524247
Common questions
What is Gautham S. Iyer, NP's NPI number?
Gautham S. Iyer, NP's National Provider Identifier (NPI) is 1952534422, issued on Aug 31, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Gautham S. Iyer, NP located?
The NPPES record lists a practice address at 500 Parnassus Ave, San Francisco, CA, 94143. Phone: (573) 999-5365. Providers update this record themselves, so call before visiting.
How can I verify Gautham S. Iyer, NP's license?
NPPES lists California license number 18360, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Gautham S. Iyer, NP prescribe under Medicare Part D?
In 2024, Gautham S. Iyer, NP had 433 Medicare Part D claims for 37 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.