Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Howard Avory Grayson Jr., MD

Internal Medicine Physician in Hartford, CT · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1205813102

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Registry record

Entity type Individual (Type 1)

Name Dr. Howard Avory Grayson Jr.

Credential MD

Sex Male

Practice address 114 Woodland Street, Dept of Medicine, Hartford, CT, 06105

Phone (860) 714-7446

Fax (860) 714-1508

Enumeration date Dec 30, 2005

Last updated in NPPES May 22, 2012

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 024407 (CT) Primary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 24407 (CT) Secondary

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
001244079	Medicaid	CT	-

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 → Validate an NPI →

Frequently asked questions

What is the NPI number for Howard Grayson?

The National Provider Identifier (NPI) for Howard Grayson is 1205813102, a Type 1 (individual) record in the CMS NPPES registry.

Where does Howard Grayson practice?

The practice location on file with NPPES is in Hartford, CT. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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John Scholes Anatomic Pathology & Clinical Pathology Physician · Hartford, CT NPI 1659349371 Pamela Kowalczyk Anatomic Pathology & Clinical Pathology Physician · Hartford, CT NPI 1114986171 Kaveh Barami Neurological Surgery Physician · Hartford, CT NPI 1255373528 Ann Nelson Family Nurse Practitioner · Hartford, CT NPI 1376637009 Stephanie Montgomery Surgical Critical Care Physician · Hartford, CT NPI 1932224607 Selwena Brewster Emergency Medicine Physician · Hartford, CT NPI 1821221078 Veronica Maria Pimentel Obstetrics & Gynecology Physician · Hartford, CT NPI 1720309206 Brian Morey Surgical Physician Assistant · Hartford, CT NPI 1033464771

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-05-22.