NPPES file of Aug 9, 2026

Stacy Fielding Harmon, M.D.

Emergency Medicine Physician · Santa Maria, CA

Stacy Fielding Harmon, M.D. is an emergency medicine physician with a practice address in Santa Maria, California, and NPI 1922039148, issued on Jul 5, 2006. Check the license (California G78276, 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
1922039148
Name
Stacy Fielding Harmon
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
G78276 CA
Self-reported in NPPES; status is on the state search
Practice location
1400 E Church St, Santa Maria, CA 93454
Phone
(805) 739-3200
Enumerated
Jul 5, 2006
Record last updated
Jun 25, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(805) 739-3064
Medicaid ID
00G782760 CA
Medicare enrollment
Enrolled (PECOS I20041203000473); accepts Medicare assignment
Medical or professional school
University Of Southern California Keck School Of Medicine, 1992
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 1400 E Church St

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

  1. Elena Agafonova, M.D.Internal Medicine Physician1558757666
  2. Alyse Andrade, RN IBCLCLactation Consultant (Registered Nurse)1104647403
  3. Steven Andrews, PAPhysician Assistant1083352397
  4. Andrea ArthoferStudent in an Organized Health Care Education/Training Program1225772973
  5. Hannah Barrows, PA-CPhysician Assistant1528747128
  6. Nader Batal, DOFamily Medicine Physician1740923135

Verify Stacy Fielding Harmon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G78276
    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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60% fewer Medicare Part D claims than the average emergency medicine physician in 2024

90 Medicare Part D claims for 68 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Stacy Harmon90
  2. Specialty average226

Most prescribed

  1. Cefuroxime15 claims
  2. Ondansetron Odt13 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): 94.6 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 score76.7
  2. Costout of 100 · 30%97.1
  3. Promoting interoperabilitynot scored (reweighted)
  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).

Bills Medicare through one group practice

  1. Cep America - CaliforniaSanta Maria, CA

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

Stacy Fielding Harmon among 7,751 emergency medicine physician records in California

Stacy Fielding Harmon, M.D. is one of 7,751 emergency 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 4% of them.

  • NPI issued2006 · 4% of these records are older, 60% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated1992 · median 2011 among the 4,560 with a school on file
  • Record last updated2008 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in California

There are 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Matthew Cote, M.D.Santa Maria, CA 934541548291826
  2. David Duke, M.D.Santa Maria, CA 934541780615963
  3. Cheryl Durstein-Decker, M.D. FACEPSanta Maria, CA 934541073569026
  4. William Hurst, M.D.Santa Maria, CA 934541255362489
  5. Brian Jensen, M.D.Santa Maria, CA 934541750318002
  6. David Ketelaar, M.D.Santa Maria, CA 934541073543542
  7. Charles Merrill, M.D.Santa Maria, CA 934541679504880
  8. David Oates, M.D.Santa Maria, CA 934541679504807

Common questions

What is Stacy Fielding Harmon, M.D.'s NPI number?

Stacy Fielding Harmon, M.D.'s National Provider Identifier (NPI) is 1922039148, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stacy Fielding Harmon, M.D. located?

The NPPES record lists a practice address at 1400 E Church St, Santa Maria, CA, 93454. Phone: (805) 739-3200. Providers update this record themselves, so call before visiting.

How can I verify Stacy Fielding Harmon, M.D.'s license?

NPPES lists California license number G78276, 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 Stacy Fielding Harmon, M.D. prescribe under Medicare Part D?

In 2024, Stacy Fielding Harmon, M.D. had 90 Medicare Part D claims for 68 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Stacy Fielding Harmon, M.D.'s MIPS final score?

The 2023 MIPS final score is 94.6 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.