Nathaniel Greeley, PA-C
Medical Physician Assistant · Marysville, CA
Nathaniel Greeley, PA-C is a medical physician assistant with a practice address in Marysville, California, and NPI 1962946236, issued on Dec 6, 2016. Check the license (California 54050, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nathaniel Greeley
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 54050 CA
Self-reported in NPPES; status is on the state search - Practice location
- 726 4TH St, Marysville, CA 95901
- Phone
- (530) 749-4300
- Enumerated
- Dec 6, 2016
- Record last updated
- Dec 6, 2016 (not updated in 10 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,376 in California → Look up another NPI →
Also registered at 726 4TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nathaniel Greeley in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 54050Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average medical physician assistant in 2024
224 Medicare Part D claims for 171 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. 30 claims were for opioids.
Most prescribed
- Cephalexin38 claims
- Hydrocodone-Acetaminophen20 claims
- Amoxicillin-Clavulanate Potass16 claims
- Prednisone11 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Nathaniel Greeley among 3,376 medical physician assistant records in California
Nathaniel Greeley, PA-C is one of 3,376 medical physician assistant records with a practice address in California. 69% 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 66% of them.
- NPI issued2016 · 66% of these records are older, 31% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · 40% of these records are
- Record last updated2016 · 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 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in California
There are 3,376 medical physician assistant records in California.
All 3,376 in California → Every provider in Marysville → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Samantha Geweke, PAMarysville, CA 959011992719322
- Jace Keister, PA-CMarysville, CA 959011417101163
- Stephen Kotarek, PAMarysville, CA 959011235371915
- Juanita Louis, MPA-CMarysville, CA 959011326342072
- Kevan Mathis, PA-CMarysville, CA 959011982459368
- Cynthia Nielson, PAMarysville, CA 959011578588349
- Craig Rhoades, PAMarysville, CA 959011164612990
- Tawnya Hoffman, PA-CBrownsville, CA 959191538351705
Common questions
What is Nathaniel Greeley, PA-C's NPI number?
Nathaniel Greeley, PA-C's National Provider Identifier (NPI) is 1962946236, issued on Dec 6, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Nathaniel Greeley, PA-C located?
The NPPES record lists a practice address at 726 4TH St, Marysville, CA, 95901. Phone: (530) 749-4300. Providers update this record themselves, so call before visiting.
How can I verify Nathaniel Greeley, PA-C's license?
NPPES lists California license number 54050, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Nathaniel Greeley, PA-C prescribe under Medicare Part D?
In 2024, Nathaniel Greeley, PA-C had 224 Medicare Part D claims for 171 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
What is Nathaniel Greeley, PA-C'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.