Margaret O'Shea, MD
NPI 1649620204 · Internal Medicine Physician · Mineola, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret O'Shea, MD is a Internal Medicine Physician provider in Mineola, NY (NPI 1649620204).
Provider details
- NPI number
- 1649620204
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 301885 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
862 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 279 | $146 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 173 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 87 | $148 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 80 | $104 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 72 | $17 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 68 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 293 | 85 |
| Amlodipine Besylate | 257 | 72 |
| Levothyroxine Sodium | 158 | 49 |
| Losartan Potassium | 121 | 35 |
| Pantoprazole Sodium | 98 | 25 |
| Rosuvastatin Calcium | 96 | 28 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-06-15
- Last updated
- 2021-09-15
- Certified
- 2021-09-15
Frequently asked questions
- What is Margaret O'Shea's NPI number?
- Margaret O'Shea's National Provider Identifier (NPI) is 1649620204, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret O'Shea's specialty?
- Margaret O'Shea is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret O'Shea located?
- Margaret O'Shea's practice location on file with NPPES is 222 Station Plz N Ste 509, Mineola, NY 11501-3893.
- What is Margaret O'Shea's phone number?
- The practice phone number listed in the NPPES registry for Margaret O'Shea is (516) 663-2381.
- Does Margaret O'Shea accept Medicare?
- Margaret O'Shea is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret O'Shea's NPI active?
- Yes — Margaret O'Shea's NPI (1649620204) is active in the NPPES registry as of the last update on 2021-09-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.