NPPES file of Aug 9, 2026

Gregory N. Mitchell, PA-C

Physician Assistant · San Bernardino, CA

Gregory N. Mitchell, PA-C is a physician assistant with a practice address in San Bernardino, California, and NPI 1477636496, issued on Oct 23, 2006. Check the license (California PA18652, as entered in NPPES) with the California board that licenses this profession; 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
1477636496
Name
Gregory N. Mitchell
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
PA18652 CA
Self-reported in NPPES; status is on the state search
Practice location
401 E Highland Ave Ste 251, San Bernardino, CA 92404
Phone
(909) 882-4605
Enumerated
Oct 23, 2006
Record last updated
Aug 21, 2023
Fax
(909) 475-2680
Medicare enrollment
Enrolled (PECOS I20061130000509); 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 401 E Highland Ave Ste 251

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

  1. Mir Ali, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1831301647
  2. Ann Connor, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1710098272
  3. Sameh Hanna, M.D.Pulmonary Disease Physician1326112913
  4. Nahidh Hasaniya, M.D.PHDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1316973605
  5. Michio Kajitani, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1194704387
  6. Robert Parkinson, PA-CPhysician Assistant1245261494

Verify Gregory N. Mitchell in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license PA18652
    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
Find 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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88% fewer Medicare Part D claims than the average physician assistant in 2024

101 Medicare Part D claims for 45 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 33 claims were for opioids.

  1. Gregory Mitchell101
  2. Specialty average830

Most prescribed

  1. Furosemide14 claims
  2. Hydrocodone-Acetaminophen13 claims
  3. Tramadol Hcl12 claims
  4. Potassium Chloride11 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 MIPS final score for 2023 (Medicare payment program): 96.5 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score80.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $328.06

11 payments; by number, the most common kind was food and beverage; the largest payer was Atricure, Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory Mitchell$328.06
  2. Specialty average$841.65

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital affiliation

  1. Eisenhower Medical CenterRancho Mirage, CA · Acute Care Hospitals4 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Gregory N. Mitchell among 14,451 physician assistant records in California

Gregory N. Mitchell, PA-C is one of 14,451 physician assistant records with a practice address in California. 75% 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 1% of them.

  • NPI issued2006 · 1% of these records are older, 87% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2006 · median 2018 among the 7,214 with a school on file
  • Record last updated2023 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

83 physician assistant records list a practice address in San Bernardino

They are 83 of the 5,645 NPPES records with a practice address in San Bernardino, and 14,451 physician assistant records in California.

The 8 physician assistant records with the nearest ZIP codes

  1. Silvia Barr, PA-CSan Bernardino, CA 924041245602259
  2. Brian Benson, PA-CSan Bernardino, CA 924041700943107
  3. William Boyle, PA-CSan Bernardino, CA 924041124053715
  4. Raymond Cervenka, PASan Bernardino, CA 924041497965529
  5. Deval Dave, PASan Bernardino, CA 924041013220458
  6. William Inciso, PA-C, PHDSan Bernardino, CA 924041407050289
  7. Amber Janson, PA-CSan Bernardino, CA 924041750753141
  8. Billy Kim, PA-CSan Bernardino, CA 924041285973859

Common questions

What is Gregory N. Mitchell, PA-C's NPI number?

Gregory N. Mitchell, PA-C's National Provider Identifier (NPI) is 1477636496, issued on Oct 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory N. Mitchell, PA-C located?

The NPPES record lists a practice address at 401 E Highland Ave Ste 251, San Bernardino, CA, 92404. Phone: (909) 882-4605. Providers update this record themselves, so call before visiting.

How can I verify Gregory N. Mitchell, PA-C's license?

NPPES lists California license number PA18652, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Gregory N. Mitchell, PA-C prescribe under Medicare Part D?

In 2024, Gregory N. Mitchell, PA-C had 101 Medicare Part D claims for 45 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Gregory N. Mitchell, PA-C's MIPS final score?

The 2023 MIPS final score is 96.5 of 100. 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.