NPPES file of Aug 9, 2026

Ana L. Pacheco Clark, MD

Family Medicine Physician · Santa Rosa, CA

Ana L. Pacheco Clark, MD is a family medicine physician with a practice address in Santa Rosa, California, and NPI 1053352948, issued on Jun 9, 2006. Check the license (California G62400, 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
1053352948
Name
Ana L. Pacheco Clark
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
G62400 CA
Self-reported in NPPES; status is on the state search
Practice location
4700 Hoen Ave, Santa Rosa, CA 95405
Phone
(707) 526-3360
Enumerated
Jun 9, 2006
Record last updated
Jan 4, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(707) 526-0554
Medicaid ID
00G624000 CA
Medicare enrollment
Enrolled (PECOS I20070606000778); accepts Medicare assignment
Medical or professional school
University Of California, San Francisco School Of Medicine, 1986
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 4700 Hoen Ave

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

  1. Katherine Hardin, FNPFamily Nurse Practitioner1871085662
  2. Robert Heckey, MDGeneral Practice Physician1205879681
  3. Thomas Honrath, M.D.Family Medicine Physician1093779845
  4. Catherine Johnsen, DOFamily Medicine Physician1801830724
  5. Saverio Roberto, DOInternal Medicine Physician1700285103
  6. Kirsty Viera, PSY.D.Clinical Psychologist1992995534

Verify Ana L. Pacheco Clark in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G62400
    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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39% fewer Medicare Part D claims than the average family medicine physician in 2024

2,158 Medicare Part D claims for 220 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 24 claims were for opioids.

  1. Ana Pacheco Clark2,158
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium271 claims
  2. Levothyroxine Sodium109 claims
  3. Losartan Potassium85 claims
  4. Hydrochlorothiazide75 claims
  5. Lisinopril69 claims
  6. Alendronate Sodium65 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 FoundationSanta Rosa, CA

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

Ana L. Pacheco Clark among 17,133 family medicine physician records in California

Ana L. Pacheco Clark, MD is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1986 · median 2005 among the 10,652 with a school on file
  • Record last updated2012 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

264 family medicine physician records list a practice address in Santa Rosa

They are 264 of the 6,884 NPPES records with a practice address in Santa Rosa, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Herbert Brosbe, M.D.Santa Rosa, CA 954051518940519
  2. Forrest Chilcott, MDSanta Rosa, CA 954051841229689
  3. James Devore, MDSanta Rosa, CA 954051043273469
  4. Tabitha Doniach, M.D., PH.D.Santa Rosa, CA 954051952344616
  5. Gary Furness, MDSanta Rosa, CA 954051144281635
  6. Alvin Gore, MDSanta Rosa, CA 954051326042821
  7. Thomas Honrath, M.D.Santa Rosa, CA 954051093779845
  8. Catherine Johnsen, DOSanta Rosa, CA 954051801830724

Common questions

What is Ana L. Pacheco Clark, MD's NPI number?

Ana L. Pacheco Clark, MD's National Provider Identifier (NPI) is 1053352948, issued on Jun 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ana L. Pacheco Clark, MD located?

The NPPES record lists a practice address at 4700 Hoen Ave, Santa Rosa, CA, 95405. Phone: (707) 526-3360. Providers update this record themselves, so call before visiting.

How can I verify Ana L. Pacheco Clark, MD's license?

NPPES lists California license number G62400, 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 Ana L. Pacheco Clark, MD prescribe under Medicare Part D?

In 2024, Ana L. Pacheco Clark, MD had 2,158 Medicare Part D claims for 220 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.