Gregory Trimble, M.D.
NPI 1306064498 · Hospitalist Physician · Falls Church, VA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Trimble, M.D. is a Hospitalist Physician provider in Falls Church, VA (NPI 1306064498).
Provider details
- NPI number
- 1306064498
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 0101243239 (VA)
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
19 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
335 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 184 | $127 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 94 | $84 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 57 | $123 |
Typical Medicare-allowed amounts for these services range $84–$127 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-23
- Last updated
- 2021-02-01
- Certified
- 2021-02-01
Frequently asked questions
- What is Gregory Trimble's NPI number?
- Gregory Trimble's National Provider Identifier (NPI) is 1306064498, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Trimble's specialty?
- Gregory Trimble is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Trimble located?
- Gregory Trimble's practice location on file with NPPES is 3300 Gallows Rd, Falls Church, VA 22042-3307.
- What is Gregory Trimble's phone number?
- The practice phone number listed in the NPPES registry for Gregory Trimble is (703) 776-3582.
- Does Gregory Trimble accept Medicare?
- Gregory Trimble is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Trimble's NPI active?
- Yes — Gregory Trimble's NPI (1306064498) is active in the NPPES registry as of the last update on 2021-02-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.