Gregory Downing, M.D., D.O.
NPI 1285656454 · Neonatal-Perinatal Medicine Physician · Silver Spring, MD
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Downing, M.D., D.O. is a Neonatal-Perinatal Medicine Physician provider in Silver Spring, MD (NPI 1285656454).
Provider details
- NPI number
- 1285656454
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 21885 (ND)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-24
- Last updated
- 2024-12-14
- Certified
- 2024-12-14
Frequently asked questions
- What is Gregory Downing's NPI number?
- Gregory Downing's National Provider Identifier (NPI) is 1285656454, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Downing's specialty?
- Gregory Downing is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Downing located?
- Gregory Downing's practice location on file with NPPES is 1500 Forest Glen Rd, Silver Spring, MD 20910-1483.
- What is Gregory Downing's phone number?
- The practice phone number listed in the NPPES registry for Gregory Downing is (240) 364-2510.
- Does Gregory Downing accept Medicare?
- Gregory Downing is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Downing's NPI active?
- Yes — Gregory Downing's NPI (1285656454) is active in the NPPES registry as of the last update on 2024-12-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.