Sonal Vasant Phatak, M.D.
Endocrinology, Diabetes & Metabolism Physician · Santa Barbara, CA
Sonal Vasant Phatak, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Santa Barbara, California, and NPI 1932291119, issued on Sep 28, 2006. Check the license (California A90261, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sonal Vasant Phatak
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- A90261 CA
Self-reported in NPPES; status is on the state search - Practice location
- 111 E Victoria St, Santa Barbara, CA 93101
- Phone
- (805) 564-3233
- Enumerated
- Sep 28, 2006
- Record last updated
- Feb 3, 2026
- Medicare enrollment
- Enrolled (PECOS I20121029000632); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Also registered at 111 E Victoria St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Melody Fulton, DOFamily Medicine Physician1679153704
- Wanda Kim-Hayes, PAMedical Physician Assistant1760718985
- Louise Stewart, MDDermatology Physician1629066030
Verify Sonal Vasant Phatak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A90261Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
1,462 Medicare Part D claims for 320 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 42% of claims.
Most prescribed
- Levothyroxine Sodium345 claims
- Alendronate Sodium144 claims
- Synthroid108 claims
- Jardiance63 claims
- Ozempic50 claims
- Methimazole40 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 3 group practices
- Regents OF The Univ OF CASacramento, CA
- Regents OF The University OF CaliforniaRoseville, CA
- The Regents OF The University OF CaliforniaSanta Barbara, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sonal Vasant Phatak among 1,131 endocrinology, diabetes & metabolism physician records in California
Sonal Vasant Phatak, M.D. is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 54% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2003 · median 2003 among the 779 with a school on file
- Record last updated2026 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in Santa Barbara → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Sylvia Rivera, M.D.Santa Barbara, CA 931011932424702
- Alex Depaoli, M.D.Santa Barbara, CA 931051457398844
- Daniel Berger, MDSanta Barbara, CA 931101669407680
- Charles Donner, M.D.Santa Barbara, CA 931101245242197
- Muhammad Haq, M.D.Santa Barbara, CA 931101710126388
- Jennifer Hone, MDSanta Barbara, CA 931101104823954
- Kateryna Markova, M.D.Santa Barbara, CA 931101255688560
- Ashley Thorsell, M.D.Santa Barbara, CA 931101013146364
Common questions
What is Sonal Vasant Phatak, M.D.'s NPI number?
Sonal Vasant Phatak, M.D.'s National Provider Identifier (NPI) is 1932291119, issued on Sep 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sonal Vasant Phatak, M.D. located?
The NPPES record lists a practice address at 111 E Victoria St, Santa Barbara, CA, 93101. Phone: (805) 564-3233. Providers update this record themselves, so call before visiting.
How can I verify Sonal Vasant Phatak, M.D.'s license?
NPPES lists California license number A90261, 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 Sonal Vasant Phatak, M.D. prescribe under Medicare Part D?
In 2024, Sonal Vasant Phatak, M.D. had 1,462 Medicare Part D claims for 320 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.