Arkady Massen, M.D.
NPI 1306943626 · Family Medicine Physician · Hayward, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arkady Massen, M.D. is a Family Medicine Physician provider in Hayward, CA (NPI 1306943626).
Provider details
- NPI number
- 1306943626
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A527260 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 35 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 128 |
| Metformin Hcl | 94 |
| Metoprolol Tartrate | 65 |
| Furosemide | 62 |
| Apixabanbrand: Eliquis | 60 |
| Losartan Potassium | 55 |
| Gabapentin | 55 |
| Potassium Chloride | 51 |
| Famotidine | 38 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-20
- Last updated
- 2011-02-24
Frequently asked questions
- What is Arkady Massen's NPI number?
- Arkady Massen's National Provider Identifier (NPI) is 1306943626, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arkady Massen's specialty?
- Arkady Massen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Arkady Massen located?
- Arkady Massen's practice location on file with NPPES is 19682 Hesperian Blvd Ste 101a, Hayward, CA 94541-4752.
- What is Arkady Massen's phone number?
- The practice phone number listed in the NPPES registry for Arkady Massen is (510) 783-0536.
- Does Arkady Massen accept Medicare?
- Arkady Massen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Arkady Massen's NPI active?
- Yes — Arkady Massen's NPI (1306943626) is active in the NPPES registry as of the last update on 2011-02-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.