Jonathan Pai
Hematology & Oncology Physician · Walnut Creek, CA
Jonathan Pai is a hematology & oncology physician with a practice address in Walnut Creek, California, and NPI 1285196105, issued on Apr 1, 2019. Check the license (California A177349, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jonathan Pai
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A177349 CA
Self-reported in NPPES; status is on the state search - Practice location
- 177 LA Casa Via Ste 390, Walnut Creek, CA 94598
- Phone
- (925) 692-5610
- Enumerated
- Apr 1, 2019
- Record last updated
- Sep 15, 2025
- Medicare enrollment
- Enrolled (PECOS I20250929000951); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 177 LA Casa Via Ste 390
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hangama Abassi, N.P.Nurse Practitioner1487083655
- Sarah Buenviaje, M.S.N., O.N.P.Nurse Practitioner1588716971
- Shannon ChakedisNurse Practitioner1134527690
- Aditi Choudhry, M.D.Hematology & Oncology Physician1427218908
- Mary Angelyn Clark, MSN, APRNNurse Practitioner1053887455
- Cameron Fisher, PAPhysician Assistant1073187936
Verify Jonathan Pai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A177349Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
122 Medicare Part D claims for 52 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Dexamethasone11 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: $1,707.95
64 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 8,560 providers of this specialty with any payment received $7,481.41 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
- John Muir Physician NetworkPleasant Hill, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jonathan Pai among 1,583 hematology & oncology physician records in California
Jonathan Pai is one of 1,583 hematology & oncology physician records with a practice address in California. 83% 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 95% of them.
- NPI issued2019 · 95% of these records are older, 3% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2019 · median 2003 among the 1,124 with a school on file
- Record last updated2025 · 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 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in Walnut Creek → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Aditi Choudhry, M.D.Walnut Creek, CA 945981427218908
- Aruna Gavini, MDWalnut Creek, CA 945981942439021
- Ammara Gill, MDWalnut Creek, CA 945981447482096
- Jewel Johl, M.D.Walnut Creek, CA 945981407852858
- Jose Ochoa-Bayona, M.D.Walnut Creek, CA 945981669475158
- Ronak Patel, M.D.Walnut Creek, CA 945981255872602
- Gauri Sharma, D.O.Walnut Creek, CA 945981528234002
- Michael Sherman, M.D., PHDWalnut Creek, CA 945981164643359
Common questions
What is Jonathan Pai's NPI number?
Jonathan Pai's National Provider Identifier (NPI) is 1285196105, issued on Apr 1, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan Pai located?
The NPPES record lists a practice address at 177 LA Casa Via Ste 390, Walnut Creek, CA, 94598. Phone: (925) 692-5610. Providers update this record themselves, so call before visiting.
How can I verify Jonathan Pai's license?
NPPES lists California license number A177349, 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 Jonathan Pai prescribe under Medicare Part D?
In 2024, Jonathan Pai had 122 Medicare Part D claims for 52 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.