Earl Andrew Balayan De Guzman, MD
Psychiatry Physician · San Francisco, CA
Earl Andrew Balayan De Guzman, MD is a psychiatry physician with a practice address in San Francisco, California, and NPI 1821432378, issued on Apr 25, 2013. Check the license (California A132370, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Earl Andrew Balayan De Guzman
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- A132370 CA
V9884 TX
Self-reported in NPPES; status is on the state search - Practice location
- 100 Pine St, San Francisco, CA 94111
- Phone
- (833) 351-8255
- Enumerated
- Apr 25, 2013
- Record last updated
- Nov 4, 2025
- Fax
- (888) 815-3583
- Medicare enrollment
- Enrolled (PECOS I20161205001169); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 100 Pine St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carroll Brown, PMHNPPsychiatric/Mental Health Nurse Practitioner1831709773
- Tiffany Chu, MDPsychiatry Physician1285210245
- Jaime Loebner, MSN, FPMHNP-BC, APRNPsychiatric/Mental Health Nurse Practitioner1003168071
- Melissa MedinaClinical Social Worker1467826222
- Shantale Williams-Jules, MDPsychiatry Physician1336777119
Verify Earl Andrew Balayan De Guzman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A132370Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% more Medicare Part D claims than the average psychiatry physician in 2024
1,326 Medicare Part D claims for 246 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.
Most prescribed
- Sertraline Hcl118 claims
- Trazodone Hcl116 claims
- Quetiapine Fumarate113 claims
- Clonazepam86 claims
- Lorazepam75 claims
- Buspirone Hcl68 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.
Earl Andrew Balayan De Guzman among 8,673 psychiatry physician records in California
Earl Andrew Balayan De Guzman, MD is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 69% of them.
- NPI issued2013 · 69% of these records are older, 29% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated2012 · median 2005 among the 3,295 with a school on file
- Record last updated2025 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
763 psychiatry physician records list a practice address in San Francisco
They are 763 of the 38,143 NPPES records with a practice address in San Francisco, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in San Francisco → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Samih Boutros, MDSan Francisco, CA 941111811022064
- Megan Crochet, M.D.San Francisco, CA 941111730321399
- Jeffrey Hays, MDSan Francisco, CA 941111578798237
- James Hutchinson, M.D.San Francisco, CA 941111437177607
- Robert Johnson, M.D., J.D., LL.M.San Francisco, CA 941111043505936
- Lawrence Kaplan, D.O.San Francisco, CA 941111144540451
- Felicitas Koster, D.O.San Francisco, CA 941111295025005
- Sherrell Lam, M.D.San Francisco, CA 941111487817797
Common questions
What is Earl Andrew Balayan De Guzman, MD's NPI number?
Earl Andrew Balayan De Guzman, MD's National Provider Identifier (NPI) is 1821432378, issued on Apr 25, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Earl Andrew Balayan De Guzman, MD located?
The NPPES record lists a practice address at 100 Pine St, San Francisco, CA, 94111. Phone: (833) 351-8255. Providers update this record themselves, so call before visiting.
How can I verify Earl Andrew Balayan De Guzman, MD's license?
NPPES lists California license number A132370, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Earl Andrew Balayan De Guzman, MD prescribe under Medicare Part D?
In 2024, Earl Andrew Balayan De Guzman, MD had 1,326 Medicare Part D claims for 246 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.