Heather Maria Pena, MD
Internal Medicine Physician · Saint Helena, CA
Heather Maria Pena, MD is an internal medicine physician with a practice address in Saint Helena, California, and NPI 1881703973, issued on Aug 30, 2006. Check the license (California G49251, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Heather Maria Pena
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G49251 CA
Self-reported in NPPES; status is on the state search - Practice location
- 999 Adams St., Saint Helena, CA 94574
- Phone
- (707) 967-9000
- Enumerated
- Aug 30, 2006
- Record last updated
- Mar 7, 2023
- Fax
- (707) 967-9777
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Heather Maria Pena in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G49251Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average internal medicine physician in 2024
532 Medicare Part D claims for 30 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.
Most prescribed
- Rosuvastatin Calcium43 claims
- Potassium Chloride24 claims
- Atorvastatin Calcium23 claims
- Levothyroxine Sodium23 claims
- Estradiol21 claims
- Ezetimibe18 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.
Heather Maria Pena among 17,696 internal medicine physician records in California
Heather Maria Pena, 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2023 · 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).
11 internal medicine physician records list a practice address in Saint Helena
They are 11 of the 232 NPPES records with a practice address in Saint Helena, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Saint Helena → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sahiba Bajwa, MDSaint Helena, CA 945741346869567
- Matthew Corvo, MDSaint Helena, CA 945741265811475
- Susan Gamble, M.D.Saint Helena, CA 945741790950079
- Leah Grabenauer, MDSaint Helena, CA 945741760740385
- John Hart, MDSaint Helena, CA 945741104904945
- Hirofumi Hashimoto, MDSaint Helena, CA 945741104812585
- Arun Hatwalkar, MDSaint Helena, CA 945741689600090
- Padmaja Manyam, M.D.Saint Helena, CA 945741679882500
Common questions
What is Heather Maria Pena, MD's NPI number?
Heather Maria Pena, MD's National Provider Identifier (NPI) is 1881703973, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Heather Maria Pena, MD located?
The NPPES record lists a practice address at 999 Adams St., Saint Helena, CA, 94574. Phone: (707) 967-9000. Providers update this record themselves, so call before visiting.
How can I verify Heather Maria Pena, MD's license?
NPPES lists California license number G49251, 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 Heather Maria Pena, MD prescribe under Medicare Part D?
In 2024, Heather Maria Pena, MD had 532 Medicare Part D claims for 30 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.