Mary Ellis, M.D.
NPI 1134447329 · Family Medicine Physician · Oceanside, NY
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Ellis, M.D. is a Family Medicine Physician provider in Oceanside, NY (NPI 1134447329).
Provider details
- NPI number
- 1134447329
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- ME116438 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
16 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
79 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 45 | $74 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 34 | $108 |
Typical Medicare-allowed amounts for these services range $74–$108 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 50 | 19 |
| Amlodipine Besylate | 39 | 15 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 23 | — |
| Losartan Potassium | 23 | 15 |
| Levothyroxine Sodium | 18 | — |
| Gabapentin | 17 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$273 across 5 records (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)
- 250 Fulton AveHempstead, NY 11550-3917Phone: (516) 497-7520
Registry dates
- Enumerated
- 2010-05-12
- Last updated
- 2022-12-06
- Certified
- 2022-12-06
Frequently asked questions
- What is Mary Ellis's NPI number?
- Mary Ellis's National Provider Identifier (NPI) is 1134447329, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Ellis's specialty?
- Mary Ellis is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Ellis located?
- Mary Ellis's practice location on file with NPPES is 196 Merrick Rd, Oceanside, NY 11572-1420.
- What is Mary Ellis's phone number?
- The practice phone number listed in the NPPES registry for Mary Ellis is (516) 255-8400.
- Does Mary Ellis accept Medicare?
- Mary Ellis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Ellis's NPI active?
- Yes — Mary Ellis's NPI (1134447329) is active in the NPPES registry as of the last update on 2022-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.