NPPES file of Aug 9, 2026

Siddharth Hublikar, MD

Internal Medicine Physician · Santa Rosa, CA

Siddharth Hublikar, MD is an internal medicine physician with a practice address in Santa Rosa, California, and NPI 1912133646, issued on Jun 9, 2009. Check the license (California A129113, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1912133646
Name
Siddharth Hublikar
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A129113 CA
Self-reported in NPPES; status is on the state search
Practice location
1165 Montgomery Dr, Santa Rosa, CA 95405
Phone
(707) 546-3210
Enumerated
Jun 9, 2009
Record last updated
Nov 3, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20141007000647); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1165 Montgomery Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Maryam Aghighi, MDAnatomic Pathology & Clinical Pathology Physician1073074977
  2. Johnathan Agil, MDEmergency Medicine Physician1700413002
  3. Katherine Aldrich, NPAdult Health Nurse Practitioner1194995563
  4. Mujeeb Altaf, MBBS.,MRCP(UK)Hospitalist Physician1316125941
  5. Rebecca Althoff, RNFARegistered Nurse First Assistant1427119668
  6. Sanyogeeta Bhaway, M.D.Internal Medicine Physician1275828162

Verify Siddharth Hublikar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A129113
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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93% fewer Medicare Part D claims than the average internal medicine physician in 2024

211 Medicare Part D claims for 103 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 23 claims were for opioids.

  1. Siddharth Hublikar211
  2. Specialty average3,176

Most prescribed

  1. Eliquis13 claims
  2. Atorvastatin Calcium11 claims
  3. Pantoprazole Sodium11 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

  1. Galen Inpatient Physicians PCGreenbrae, CA
  2. Providence Medical FoundationSanta Rosa, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Siddharth Hublikar among 17,696 internal medicine physician records in California

Siddharth Hublikar, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 60% of them.

  • NPI issued2009 · 60% of these records are older, 37% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2006 · median 2004 among the 11,065 with a school on file
  • Record last updated2021 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

98 internal medicine physician records list a practice address in Santa Rosa

They are 98 of the 6,884 NPPES records with a practice address in Santa Rosa, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Nicholas Anton, MDSanta Rosa, CA 954051659364933
  2. George Bisbee, MDSanta Rosa, CA 954051235122516
  3. David Capaccio, DOSanta Rosa, CA 954051457355364
  4. David Charp, M.D.Santa Rosa, CA 954051053335208
  5. Catherine Davis, MDSanta Rosa, CA 954051497748776
  6. Marlon Decastro, M.D.Santa Rosa, CA 954051780643270
  7. John Hurwitz, DOSanta Rosa, CA 954051124018262
  8. Adina Logan, M.D.Santa Rosa, CA 954051881667178

Common questions

What is Siddharth Hublikar, MD's NPI number?

Siddharth Hublikar, MD's National Provider Identifier (NPI) is 1912133646, issued on Jun 9, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Siddharth Hublikar, MD located?

The NPPES record lists a practice address at 1165 Montgomery Dr, Santa Rosa, CA, 95405. Phone: (707) 546-3210. Providers update this record themselves, so call before visiting.

How can I verify Siddharth Hublikar, MD's license?

NPPES lists California license number A129113, 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 Siddharth Hublikar, MD prescribe under Medicare Part D?

In 2024, Siddharth Hublikar, MD had 211 Medicare Part D claims for 103 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.