Grace Stonerock, M.D.
NPI 1629234489 · Family Medicine Physician · Manassas, VA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grace Stonerock, M.D. is a Family Medicine Physician provider in Manassas, VA (NPI 1629234489).
Provider details
- NPI number
- 1629234489
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 0101045665 (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
17 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
1,340 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 642 | $124 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 209 | $87 |
| Stool Analysis for Blood to Screen for Colon Tumors82270 | 150 | $4 |
| Administration of Influenza Virus VaccineG0008 | 92 | $31 |
| 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'SG2211 | 88 | $16 |
| Admn Sarscov2 Vacc 1 Dose90480 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 139 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 403 | 126 |
| Amlodipine Besylate | 336 | 110 |
| Levothyroxine Sodium | 318 | 79 |
| Montelukast Sodium | 280 | 84 |
| Metformin Hcl | 239 | 75 |
| Lisinopril | 211 | 63 |
| Pravastatin Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,987 across 168 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
- 2008-07-31
- Last updated
- 2023-07-15
- Certified
- 2023-07-15
Frequently asked questions
- What is Grace Stonerock's NPI number?
- Grace Stonerock's National Provider Identifier (NPI) is 1629234489, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grace Stonerock's specialty?
- Grace Stonerock is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Grace Stonerock located?
- Grace Stonerock's practice location on file with NPPES is 10696 Crestwood Dr Ste B, Manassas, VA 20109-4411.
- What is Grace Stonerock's phone number?
- The practice phone number listed in the NPPES registry for Grace Stonerock is (703) 368-7110.
- Does Grace Stonerock accept Medicare?
- Grace Stonerock is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grace Stonerock's NPI active?
- Yes — Grace Stonerock's NPI (1629234489) is active in the NPPES registry as of the last update on 2023-07-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.