Mary Hagerty, MD
NPI 1942279195 · Rheumatology Physician · Winchester, VA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Hagerty, MD is a Rheumatology Physician provider in Winchester, VA (NPI 1942279195).
Provider details
- NPI number
- 1942279195
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 0101048922 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
5,873 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 971 | $9 |
| Red Blood Cell Sedimentation Rate, to Detect Inflammation, Non-Automated85651 | 811 | $4 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 762 | $128 |
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance20611 | 556 | $92 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 484 | $8 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, 1 Hour Or Less96365 |
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 |
|---|---|---|
| Prednisone | 440 | 92 |
| Hydroxychloroquine Sulfate | 438 | 94 |
| Methotrexate Sodiumbrand: Methotrexate | 363 | 81 |
| Gabapentin | 154 | 27 |
| Alendronate Sodium | 131 | 41 |
| Duloxetine Hcl | 95 | 20 |
| Meloxicam | 71 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$88 across 4 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
Registry dates
- Enumerated
- 2006-03-17
- Last updated
- 2023-03-23
- Certified
- 2023-03-23
Frequently asked questions
- What is Mary Hagerty's NPI number?
- Mary Hagerty's National Provider Identifier (NPI) is 1942279195, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Hagerty's specialty?
- Mary Hagerty is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Hagerty located?
- Mary Hagerty's practice location on file with NPPES is 420 W Jubal Early Dr Ste 104, Winchester, VA 22601-6435.
- What is Mary Hagerty's phone number?
- The practice phone number listed in the NPPES registry for Mary Hagerty is (540) 667-6232.
- Does Mary Hagerty accept Medicare?
- Mary Hagerty is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Hagerty's NPI active?
- Yes — Mary Hagerty's NPI (1942279195) is active in the NPPES registry as of the last update on 2023-03-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.