Grant Richardson
Adult Medicine Physician · Pinole, CA
Grant Richardson is an adult medicine physician with a practice address in Pinole, California, and NPI 1629643515, issued on May 24, 2021. Check the license (California 20A22558, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Grant Richardson
- Primary taxonomy
- Adult Medicine Physician 207QA0505X
- License number
- 20A22558 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1301 Pinole Valley RD, Pinole, CA 94564
- Phone
- (510) 243-4000
- Enumerated
- May 24, 2021
- Record last updated
- Sep 11, 2024
- Medicare enrollment
- Enrolled (PECOS I20241009004448); accepts Medicare assignment
- Medical or professional school
- Lake Erie Col Of Osteo Med At Seton Hill Univ, 2021
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest adult medicine physician records → All 386 in California → Look up another NPI →
Also registered at 1301 Pinole Valley RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maihan Amiryar, M.D.Family Medicine Physician1427298199
- Caleb Arthur, MDFamily Medicine Physician1518583301
- John Henson Caparas, DOFamily Medicine Physician1962730002
- Joann Cheung, PHARMDPharmacotherapy Pharmacist1639106339
- Christine ChoiPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1265725618
- Preeti Dave, MDPediatrics Physician1619242708
Verify Grant Richardson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A22558Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average adult medicine physician in 2024
199 Medicare Part D claims for 81 beneficiaries, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 14 claims were for opioids.
Most prescribed
- Albuterol Sulfate Hfa16 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.
Bills Medicare through one group practice
- Permanente Medical Group IncPinole, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Grant Richardson among 386 adult medicine physician records in California
Grant Richardson is one of 386 adult medicine physician 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 2021, is newer than 88% of them.
- NPI issued2021 · 88% of these records are older, 9% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated2021 · median 2005 among the 187 with a school on file
- Record last updated2024 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Medicine Physician providers in California
There are 386 adult medicine physician records in California.
All 386 in California → Every provider in Pinole → Adult Medicine Physician nationwide →
The 8 adult medicine physician records with the nearest ZIP codes
- Eunice Tuungafasi, FNPBay Point, CA 945651275263469
- Barbara Julier, MDPleasanton, CA 945661083629455
- Himabindu Chinnepalli, MDDublin, CA 945681134858426
- Rajeev Sachdev, M.D.Napa, CA 945581245289289
- Keri Montgomery, NPSt Helena, CA 945741881925154
- Khurram Barolia, M.D.San Leandro, CA 945771760612816
- Somia Mohanty, MDSan Leandro, CA 945771053974907
- Karan Patel, M.D.San Leandro, CA 945771538511399
Common questions
What is Grant Richardson's NPI number?
Grant Richardson's National Provider Identifier (NPI) is 1629643515, issued on May 24, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Grant Richardson located?
The NPPES record lists a practice address at 1301 Pinole Valley RD, Pinole, CA, 94564. Phone: (510) 243-4000. Providers update this record themselves, so call before visiting.
How can I verify Grant Richardson's license?
NPPES lists California license number 20A22558, 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 Grant Richardson prescribe under Medicare Part D?
In 2024, Grant Richardson had 199 Medicare Part D claims for 81 beneficiaries; the average among adult medicine physician prescribers was 3,002. 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.