Diana Superfin, M.D.
Hematology & Oncology Physician · Walnut Creek, CA
Diana Superfin, M.D. is a hematology & oncology physician with a practice address in Walnut Creek, California, and NPI 1750365953, issued on Dec 1, 2005. Check the license (California A84532, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Diana Superfin
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A84532 CA
Self-reported in NPPES; status is on the state search - Practice location
- 500 Lennon LN, Walnut Creek, CA 94598
- Phone
- (925) 939-9610
- Enumerated
- Dec 1, 2005
- Record last updated
- Sep 23, 2009 (not updated in 17 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20050728000851); accepts Medicare assignment
- Medical or professional school
- Wake Forest University School Of Medicine, 2002
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 500 Lennon LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephanie Chiu, NPNurse Practitioner1043091663
- Kathleen Fitterer, N.P.Nurse Practitioner1649439126
- Aruna Gavini, MDHematology & Oncology Physician1942439021
- Von Hoang, FNP-CFamily Nurse Practitioner1275921223
- Aleena Khan, NP-CFamily Nurse Practitioner1508457912
- Vivian Park, N.P.Adult Health Nurse Practitioner1932533452
Verify Diana Superfin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A84532Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,052 Medicare Part D claims for 156 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims. 26 claims were for opioids.
Most prescribed
- Aranesp75 claims
- Eliquis72 claims
- Neulasta Onpro55 claims
- Exemestane45 claims
- Pantoprazole Sodium39 claims
- Prednisone39 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): 0 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $7,536.21
231 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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
- Michael P Sherman MD Phd A Medical CorporationDanville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diana Superfin among 1,583 hematology & oncology physician records in California
Diana Superfin, M.D. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2002 · median 2003 among the 1,124 with a school on file
- Record last updated2009 · 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
- Jonathan PaiWalnut Creek, CA 945981285196105
- Ronak Patel, M.D.Walnut Creek, CA 945981255872602
- Gauri Sharma, D.O.Walnut Creek, CA 945981528234002
Common questions
What is Diana Superfin, M.D.'s NPI number?
Diana Superfin, M.D.'s National Provider Identifier (NPI) is 1750365953, issued on Dec 1, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Diana Superfin, M.D. located?
The NPPES record lists a practice address at 500 Lennon LN, Walnut Creek, CA, 94598. Phone: (925) 939-9610. Providers update this record themselves, so call before visiting.
How can I verify Diana Superfin, M.D.'s license?
NPPES lists California license number A84532, 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 Diana Superfin, M.D. prescribe under Medicare Part D?
In 2024, Diana Superfin, M.D. had 1,052 Medicare Part D claims for 156 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Diana Superfin, M.D.'s MIPS final score?
The 2023 MIPS final score is 0 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.