May Mar, D.O.
NPI 1194110908 · Family Medicine Physician · Union City, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
May Mar, D.O. is a Family Medicine Physician provider in Union City, CA (NPI 1194110908).
Provider details
- NPI number
- 1194110908
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- OP60831174 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
11 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 80 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 409 | 156 |
| Losartan Potassium | 249 | 82 |
| Lisinopril | 200 | 61 |
| Amlodipine Besylate | 188 | 72 |
| Levothyroxine Sodium | 160 | 55 |
| Fluticasone Propionate | 130 | 59 |
| Atenolol | 129 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$24 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 5708 E. Lake Sammamish Pkwy SeIssaquah, WA 98029Phone: (425) 688-5488Fax: (425) 233-6269
Registry dates
- Enumerated
- 2015-03-30
- Last updated
- 2022-12-13
- Certified
- 2022-12-12
Frequently asked questions
- What is May Mar's NPI number?
- May Mar's National Provider Identifier (NPI) is 1194110908, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is May Mar's specialty?
- May Mar is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is May Mar located?
- May Mar's practice location on file with NPPES is 3553 Whipple Rd, Union City, CA 94587-1507.
- What is May Mar's phone number?
- The practice phone number listed in the NPPES registry for May Mar is (510) 675-4010.
- Does May Mar accept Medicare?
- May Mar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is May Mar's NPI active?
- Yes — May Mar's NPI (1194110908) is active in the NPPES registry as of the last update on 2022-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.