Nathaniel Parker, DO
Family Medicine Physician · Nipomo, CA
Nathaniel Parker, DO is a family medicine physician with a practice address in Nipomo, California, and NPI 1366904963, issued on Apr 2, 2019. Check the license (California 19493, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nathaniel Parker
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 19493 CA
Self-reported in NPPES; status is on the state search - Practice location
- 150 Tejas PL, Nipomo, CA 93444
- Phone
- (805) 929-3211
- Enumerated
- Apr 2, 2019
- Record last updated
- Aug 26, 2022
- Fax
- (805) 929-6359
- Medicare enrollment
- Enrolled (PECOS I20220909001882); accepts Medicare assignment
- Medical or professional school
- Touro Un College Of Osteopathic Medicine, Vallejo, 2019
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 150 Tejas PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Donald Casebolt, NURSE PRACTITIONERFamily Nurse Practitioner1053343046
- Elizabeth CastillejoRegistered Dietitian1609319045
Verify Nathaniel Parker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 19493Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% more Medicare Part D claims than the average family medicine physician in 2024
4,314 Medicare Part D claims for 364 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 17 claims were for opioids.
Most prescribed
- Atorvastatin Calcium352 claims
- Lisinopril265 claims
- Metformin Hcl169 claims
- Amlodipine Besylate155 claims
- Losartan Potassium122 claims
- Omeprazole117 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.
Industry payments in 2024: $28.04
1 payment: food and beverage; the largest payer was GlaxoSmithKline, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Community Health Centers OF The Central Coast IncNipomo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathaniel Parker among 17,133 family medicine physician records in California
Nathaniel Parker, DO 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 2019, is newer than 85% of them.
- NPI issued2019 · 85% of these records are older, 12% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2019 · median 2005 among the 10,652 with a school on file
- Record last updated2022 · 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).
13 family medicine physician records list a practice address in Nipomo
They are 13 of the 156 NPPES records with a practice address in Nipomo, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Nipomo → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Emilia Ambrosio, MDNipomo, CA 934441205865151
- Alexander Austria, MDNipomo, CA 934441548299308
- Uzma Chaudhry, M.D.Nipomo, CA 934441871524017
- Richard Day, MDNipomo, CA 934441861619355
- Edward Hirsch, MDNipomo, CA 934441790986735
- Romeo Ortiz, MDNipomo, CA 934441912932393
- Phillip Plotz, M.D.Nipomo, CA 934441992753842
- Jordan Reader, DONipomo, CA 934441770146862
Common questions
What is Nathaniel Parker, DO's NPI number?
Nathaniel Parker, DO's National Provider Identifier (NPI) is 1366904963, issued on Apr 2, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Nathaniel Parker, DO located?
The NPPES record lists a practice address at 150 Tejas PL, Nipomo, CA, 93444. Phone: (805) 929-3211. Providers update this record themselves, so call before visiting.
How can I verify Nathaniel Parker, DO's license?
NPPES lists California license number 19493, 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 Nathaniel Parker, DO prescribe under Medicare Part D?
In 2024, Nathaniel Parker, DO had 4,314 Medicare Part D claims for 364 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.