Gregory Downing, M.D., D.O.

Gregory Downing is a Neonatal-Perinatal Medicine Physician provider (Pediatrics) practicing in Silver Spring, MD, registered in the NPPES registry with NPI 1285656454 since 2006. The credential MD stands for Doctor of Medicine.

✓ Active NPI ✓ Valid NPI checksum

NPI	1285656454
Entity type	Individual (Type 1)
Name	Gregory Downing
Credential	M.D., D.O.
Sex	Male
Practice address	1500 FOREST GLEN RD, Silver Spring, MD, 20910
Phone	2403642510
Enumeration date	2006-07-24
Last updated in NPPES	2024-12-14

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
2080N0001X	Neonatal-Perinatal Medicine Physician	Secondary	21885	ND
174400000X	Specialist	Secondary	H45952	MD
2080N0001X	Neonatal-Perinatal Medicine Physician	Primary	H45952	MD

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
115051100	Medicaid	MD	—

Copy-ready billing details

Provider: Gregory Downing, M.D., D.O.
NPI: 1285656454
Taxonomy: 2080N0001X (Neonatal-Perinatal Medicine Physician)
Address: 1500 FOREST GLEN RD, Silver Spring, MD, 20910

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1730186347	Camille Upchurch	Individual	Internal Medicine Physician	Silver Spring, MD
1912988502	Ann Burke	Individual	Obstetrics & Gynecology Physician	Silver Spring, MD
1578545463	Angela Lee	Individual	Emergency Medicine Physician	Silver Spring, MD
1598748824	Pothu Raju Nagabhyru	Individual	Internal Medicine Physician	Silver Spring, MD
1194796706	Dawn Walton	Individual	Neonatal-Perinatal Medicine Physician	Silver Spring, MD
1780655308	Susan Basile	Individual	Critical Care Neonatal Nurse Practitioner	Silver Spring, MD
1942271564	Rebecca Mcclenny	Individual	Neonatal Intensive Care Registered Nurse	Silver Spring, MD
1225009814	Jessica Mcadoo	Individual	Neonatal-Perinatal Medicine Physician	Silver Spring, MD

Verify this record

Cross-check NPI 1285656454 against the authoritative CMS record: view Gregory Downing on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

How do I verify Gregory Downing's NPI record?

Cross-check NPI 1285656454 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1285656454 active?

Yes — as of the latest NPPES snapshot, NPI 1285656454 is active (record last updated 2024-12-14).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2024-12-14.