NPPES file of Aug 9, 2026

Darien Heron, M.D.

Internal Medicine Physician · Scotts Valley, CA

Darien Heron, M.D. is an internal medicine physician with a practice address in Scotts Valley, California, and NPI 1821078726, issued on Jan 18, 2006. Check the license (California A84358, 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
1821078726
Name
Darien Heron
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A84358 CA
Self-reported in NPPES; status is on the state search
Practice location
4663 Scotts Valley Dr, Scotts Valley, CA 95066
Phone
(831) 458-6330
Enumerated
Jan 18, 2006
Record last updated
Jul 13, 2026
Medicare enrollment
Enrolled (PECOS I20040922000875); accepts Medicare assignment
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 4663 Scotts Valley Dr

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

  1. Sara AdkisonPhysician Assistant1780280594
  2. Lisa AlexanderPhysician Assistant1902876436
  3. Rebecca Barker, MDInternal Medicine Physician1437199841
  4. Christopher Bernardi, D.O.Family Medicine Physician1730529256
  5. Jeannette Bingham, NPFamily Nurse Practitioner1437129269
  6. Lilly Dickens, DNPPrimary Care Nurse Practitioner1184269516

Verify Darien Heron in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A84358
    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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89% more Medicare Part D claims than the average internal medicine physician in 2024

6,002 Medicare Part D claims for 528 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 224 claims were for opioids.

  1. Darien Heron6,002
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium319 claims
  2. Amlodipine Besylate260 claims
  3. Levothyroxine Sodium255 claims
  4. Lisinopril235 claims
  5. Losartan Potassium228 claims
  6. Gabapentin179 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 one group practice

  1. Sutter Bay Medical FoundationAptos, CA

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

Darien Heron among 17,696 internal medicine physician records in California

Darien Heron, 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 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 fileYes · 63% of these records are
  • Graduated1999 · median 2004 among the 11,065 with a school on file
  • Record last updated2026 · 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).

8 internal medicine physician records list a practice address in Scotts Valley

They are 8 of the 376 NPPES records with a practice address in Scotts Valley, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Marce AbareScotts Valley, CA 950661457744708
  2. Rebecca Barker, MDScotts Valley, CA 950661437199841
  3. Diane McGrew, MDScotts Valley, CA 950661669452173
  4. Vincent Nguyen, DOScotts Valley, CA 950661285212704
  5. Hailey RoumimperScotts Valley, CA 950661871179556
  6. James Telfer, M.D.Scotts Valley, CA 950661831142223
  7. Thanh Vu, MDScotts Valley, CA 950661396711149
  8. Elizabeth Brennan, M.D.Santa Cruz, CA 950651982794855

Common questions

What is Darien Heron, M.D.'s NPI number?

Darien Heron, M.D.'s National Provider Identifier (NPI) is 1821078726, issued on Jan 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Darien Heron, M.D. located?

The NPPES record lists a practice address at 4663 Scotts Valley Dr, Scotts Valley, CA, 95066. Phone: (831) 458-6330. Providers update this record themselves, so call before visiting.

How can I verify Darien Heron, M.D.'s license?

NPPES lists California license number A84358, 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 Darien Heron, M.D. prescribe under Medicare Part D?

In 2024, Darien Heron, M.D. had 6,002 Medicare Part D claims for 528 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.