Mary Pat Gronauer, NP-C
NPI 1659666360 · Family Nurse Practitioner · Fredericksburg, VA
Mary Pat Gronauer, NP-C is a Family Nurse Practitioner provider in Fredericksburg, VA (NPI 1659666360).
Provider details
- NPI number
- 1659666360
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 0024169438 (VA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
263 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 37 | $75 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 29 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 26 | $106 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 25 | $8 |
| X-Ray of Chest, 2 Views71046 | 24 | $9 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Ionized)80047 | 22 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 15 | 15 |
| Doxycycline Hyclate | 13 | 13 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 2913 Valley AveWinchester, VA 22601-2676Phone: (540) 678-0792
Registry dates
- Enumerated
- 2011-06-10
- Last updated
- 2024-01-04
- Certified
- 2024-01-04
Frequently asked questions
- What is Mary Pat Gronauer's NPI number?
- Mary Pat Gronauer's National Provider Identifier (NPI) is 1659666360, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Pat Gronauer's specialty?
- Mary Pat Gronauer is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Pat Gronauer located?
- Mary Pat Gronauer's practice location on file with NPPES is 3031 Plank Rd, Fredericksburg, VA 22401-4951.
- What is Mary Pat Gronauer's phone number?
- The practice phone number listed in the NPPES registry for Mary Pat Gronauer is (540) 736-5043.
- Is Mary Pat Gronauer's NPI active?
- Yes — Mary Pat Gronauer's NPI (1659666360) is active in the NPPES registry as of the last update on 2024-01-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.