Arkady Michailovich Massen, M.D.
Family Medicine Physician · Hayward, CA
Arkady Michailovich Massen, M.D. is a family medicine physician with a practice address in Hayward, California, and NPI 1306943626, issued on Sep 20, 2006. Check the license (California A527260, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Arkady Michailovich Massen
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A527260 CA
Self-reported in NPPES; status is on the state search - Practice location
- 19682 Hesperian Blvd Ste 101A, Hayward, CA 94541
- Phone
- (510) 783-0536
- Enumerated
- Sep 20, 2006
- Record last updated
- Feb 24, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (510) 315-1103
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 19682 Hesperian Blvd Ste 101A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Brooks, D.P.M.Podiatrist1881803047
Verify Arkady Michailovich Massen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A527260Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average family medicine physician in 2024
1,305 Medicare Part D claims for 43 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium128 claims
- Metformin Hcl94 claims
- Metoprolol Tartrate65 claims
- Furosemide62 claims
- Eliquis60 claims
- Gabapentin55 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.
Arkady Michailovich Massen among 17,133 family medicine physician records in California
Arkady Michailovich Massen, M.D. 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2011 · 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).
Family Medicine Physician providers in California
There are 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Hayward → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Russell Blackburn, MDHayward, CA 945411265448716
- Carl Gray, MDHayward, CA 945411326126152
- Jagveer KaurHayward, CA 945411124718341
- Michael MartinezHayward, CA 945411790923886
- John Taylor, MDHayward, CA 945411609871532
- Stephanie Fung, M.D.Hayward, CA 945421326291196
- Abayomi Jones, M.D.Hayward, CA 945421073782520
- Harshad Wadhar, MDHayward, CA 945421124197660
Common questions
What is Arkady Michailovich Massen, M.D.'s NPI number?
Arkady Michailovich Massen, M.D.'s National Provider Identifier (NPI) is 1306943626, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Arkady Michailovich Massen, M.D. located?
The NPPES record lists a practice address at 19682 Hesperian Blvd Ste 101A, Hayward, CA, 94541. Phone: (510) 783-0536. Providers update this record themselves, so call before visiting.
How can I verify Arkady Michailovich Massen, M.D.'s license?
NPPES lists California license number A527260, 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 Arkady Michailovich Massen, M.D. prescribe under Medicare Part D?
In 2024, Arkady Michailovich Massen, M.D. had 1,305 Medicare Part D claims for 43 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.