NPPES file of Aug 9, 2026

Sonya Heitmann, M.D.

Internal Medicine Physician · Sacramento, CA

Sonya Heitmann, M.D. is an internal medicine physician with a practice address in Sacramento, California, and NPI 1689801722, issued on Jun 16, 2009. Check the license (California A113757, 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
1689801722
Name
Sonya Heitmann
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A113757 CA
Self-reported in NPPES; status is on the state search
Practice location
4150 V St, Sacramento, CA 95817
Phone
(916) 734-7080
Enumerated
Jun 16, 2009
Record last updated
Nov 18, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20140924001309); accepts Medicare assignment
Medical or professional school
University Of California, Irvine, California College Of Medicine, 2009
Telehealth
Offers telehealth (CMS)
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 4150 V St

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

  1. Lia Angela Africa, M.D.Internal Medicine Physician1164849360
  2. Jillian Ahrens, M.D.Internal Medicine Physician1225307457
  3. Amar Al-Juburi, M.D.Gastroenterology Physician1821041229
  4. Waqar Ali, M.D.Internal Medicine Physician1891112090
  5. Amir Amini, M.D.Anesthesiology Physician1164699302
  6. Shubha Ananthakrishnan, MDNephrology Physician1275633869

Verify Sonya Heitmann in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A113757
    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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6% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,974 Medicare Part D claims for 357 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Sonya Heitmann2,974
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium266 claims
  2. Levothyroxine Sodium184 claims
  3. Rosuvastatin Calcium168 claims
  4. Amlodipine Besylate141 claims
  5. Losartan Potassium107 claims
  6. Alendronate Sodium81 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.

Industry payments in 2024: $109.17

1 payment: food and beverage; the largest payer was Novo Nordisk Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sonya Heitmann$109.17
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. The Regents OF The University OF CaliforniaSanta Monica, CA

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

Sonya Heitmann among 17,696 internal medicine physician records in California

Sonya Heitmann, M.D. 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
  • Graduated2009 · median 2004 among the 11,065 with a school on file
  • Record last updated2014 · 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).

601 internal medicine physician records list a practice address in Sacramento

They are 601 of the 33,083 NPPES records with a practice address in Sacramento, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Nelson Chiang, M.D.Sacramento, CA 958171326021494
  2. Robert Derlet, MDSacramento, CA 958171902887433
  3. Lynne Do, M.D.Sacramento, CA 958171386627644
  4. Jason Ferries, M.D.Sacramento, CA 958171609859974
  5. Steven Griffen, M.D.Sacramento, CA 958171053393835
  6. Diane Haddock, M.D.Sacramento, CA 958171013991553
  7. Calvin Hirsch, MDSacramento, CA 958171073597332
  8. Hershan Johl, MDSacramento, CA 958171255314399

Common questions

What is Sonya Heitmann, M.D.'s NPI number?

Sonya Heitmann, M.D.'s National Provider Identifier (NPI) is 1689801722, issued on Jun 16, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Sonya Heitmann, M.D. located?

The NPPES record lists a practice address at 4150 V St, Sacramento, CA, 95817. Phone: (916) 734-7080. Providers update this record themselves, so call before visiting.

How can I verify Sonya Heitmann, M.D.'s license?

NPPES lists California license number A113757, 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 Sonya Heitmann, M.D. prescribe under Medicare Part D?

In 2024, Sonya Heitmann, M.D. had 2,974 Medicare Part D claims for 357 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.