Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Novotny, MD

Internal Medicine Physician in Northampton, MA · enumerated 2006 · practices at Steward Pet Imaging LLC.

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

National Provider Identifier

1427072479

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Registry record

Entity type Individual (Type 1)

Name Mark Novotny

Credential MD

Sex Male

Practice address 30 Locust Street, Northampton, MA, 01061

Phone (413) 582-2792

Fax (413) 582-4675

Enumeration date Jul 26, 2006

Last updated in NPPES Dec 30, 2010

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 042-0006447 (VT) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 46176 (MA) Primary

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
44189	Other	MA	HEALTH NEW ENGLAND
AA191022	Other	MA	HARVARD PILGRIM HEALTH PLAN
110087091A	Medicaid	MA	-
0005274	Medicaid	VT	-
1427072479	Other	MA	FALLON COMMUNITY HEALTH PLAN
110738	Other	MA	BMC HEALTH NET
1427072479	Other	MA	BLUE CROSS AND BLUE SHIELD OF MASSACHUSETTS
4540683	Other	MA	AETNA
6004659	Other	MA	CIGNA
754694	Other	MA	TUFTS
046176	Other	MA	CONNECTICARE

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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Mark Novotny?

Mark Novotny is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Enoch Darko Emergency Medicine Physician · Northampton, MA NPI 1003874769 Julia Gates Vascular & Interventional Radiology Physician · Northampton, MA NPI 1902810096 Dwight Kelley Pharmacist · Northampton, MA NPI 1174705974 Steward Pet Imaging LLC Mobile Radiology Clinic/Center · Northampton, MA NPI 1841450004

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-30.