Ellen Cassidy, MD
NPI 1013982248 · Family Medicine Physician · Millersville, MD
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ellen Cassidy, MD is a Family Medicine Physician provider in Millersville, MD (NPI 1013982248).
Provider details
- NPI number
- 1013982248
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- D62595 (MD)
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
20 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
205 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) |
|---|---|---|
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 89 | $185 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 72 | $110 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 27 | $109 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 17 | $230 |
Typical Medicare-allowed amounts for these services range $109–$230 (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 · 35 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 80 | 12 |
| Atorvastatin Calcium | 60 | 17 |
| Levothyroxine Sodium | 53 | 12 |
| Gabapentin | 36 | 11 |
| Metoprolol Succinate | 36 | — |
| Amlodipine Besylate | 33 | — |
| Tamsulosin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-21
- Last updated
- 2014-10-15
Frequently asked questions
- What is Ellen Cassidy's NPI number?
- Ellen Cassidy's National Provider Identifier (NPI) is 1013982248, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ellen Cassidy's specialty?
- Ellen Cassidy is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ellen Cassidy located?
- Ellen Cassidy's practice location on file with NPPES is 8601 Veterans Hwy, Millersville, MD 21108-1547.
- What is Ellen Cassidy's phone number?
- The practice phone number listed in the NPPES registry for Ellen Cassidy is (410) 553-8092.
- Does Ellen Cassidy accept Medicare?
- Ellen Cassidy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ellen Cassidy's NPI active?
- Yes — Ellen Cassidy's NPI (1013982248) is active in the NPPES registry as of the last update on 2014-10-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.