NPPES file of Aug 9, 2026

Amizetta Carol Clark, M.D.

Psychiatry Physician · Saint Helena, CA

Amizetta Carol Clark, M.D. is a psychiatry physician with a practice address in Saint Helena, California, and NPI 1841646353, issued on May 13, 2016. Check the license (California A175677, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1841646353
Name
Amizetta Carol Clark
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A175677 CA
Self-reported in NPPES; status is on the state search
Practice location
10 Woodland RD, Saint Helena, CA 94574
Phone
(707) 963-3611
Enumerated
May 13, 2016
Record last updated
Mar 7, 2023
Medicare enrollment
Enrolled (PECOS I20220913002973); 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 10 Woodland RD

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

  1. Nora Allen, RN, CNSAcute Care Clinical Nurse Specialist1710481932
  2. Stephen Banks, MDRadiation Oncology Physician1770680852
  3. Wendy Battistini, PTPhysical Therapist1215888276
  4. Julie Butulia, RDRegistered Dietitian1679376891
  5. Danny Cao, PHARMACISTPharmacist1447069570
  6. David Carelock, CRNACertified Registered Nurse Anesthetist1790773596

Verify Amizetta Carol 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 A175677
    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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59% fewer Medicare Part D claims than the average psychiatry physician in 2024

414 Medicare Part D claims for 84 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.

  1. Amizetta Clark414
  2. Specialty average1,000

Most prescribed

  1. Trazodone Hcl29 claims
  2. Hydroxyzine Hcl26 claims
  3. Atorvastatin Calcium19 claims
  4. Gabapentin12 claims
  5. Quetiapine Fumarate12 claims
  6. Amlodipine Besylate11 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 78.7 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score72.9
  2. Costout of 100 · 30%55.1
  3. Promoting interoperabilityout of 100 · 25%94.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $136.51

5 payments; by number, the most common kind was food and beverage; the largest payer was Neurocrine Biosciences, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Amizetta Clark$136.51
  2. Specialty average$4,954.93

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. St. Helena HospitalSaint Helena, CA

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

Amizetta Carol Clark among 8,673 psychiatry physician records in California

Amizetta Carol Clark, M.D. is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 77% of them.

  • NPI issued2016 · 77% of these records are older, 21% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated2015 · median 2005 among the 3,295 with a school on file
  • Record last updated2023 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

9 psychiatry physician records list a practice address in Saint Helena

They are 9 of the 232 NPPES records with a practice address in Saint Helena, and 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Bruce Anderson, MDSaint Helena, CA 945741942276324
  2. Stephen Greenberg, MDSaint Helena, CA 945741215975099
  3. Cynthia Janes, MDSaint Helena, CA 945741134282262
  4. Melody Kim, M.D.Saint Helena, CA 945741730297854
  5. Heather Lewerenz, M.D.Saint Helena, CA 945741891902698
  6. Jose Mathews, M.D.Saint Helena, CA 945741225295249
  7. Bradley Nichinson, M.D.Saint Helena, CA 945741851323117
  8. Amy Wallace, MD, MPHSaint Helena, CA 945741144231499

Common questions

What is Amizetta Carol Clark, M.D.'s NPI number?

Amizetta Carol Clark, M.D.'s National Provider Identifier (NPI) is 1841646353, issued on May 13, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Amizetta Carol Clark, M.D. located?

The NPPES record lists a practice address at 10 Woodland RD, Saint Helena, CA, 94574. Phone: (707) 963-3611. Providers update this record themselves, so call before visiting.

How can I verify Amizetta Carol Clark, M.D.'s license?

NPPES lists California license number A175677, 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 Amizetta Carol Clark, M.D. prescribe under Medicare Part D?

In 2024, Amizetta Carol Clark, M.D. had 414 Medicare Part D claims for 84 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.

What is Amizetta Carol Clark, M.D.'s MIPS final score?

The 2023 MIPS final score is 78.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.