Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark David Peterson, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Phoenix, AZ · enumerated 2006.

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

National Provider Identifier

1326148800

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark David Peterson

Credential MD

Sex Male

Practice address 2632 N 20th St, Phoenix, AZ, 85006

Phone (602) 266-2200

Fax (602) 240-6177

Enumeration date Sep 24, 2006

Last updated in NPPES Sep 18, 2023

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 35706 (AZ) Secondary

2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians · License 35706 (AZ) Secondary

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 321958 (NY) 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
147570	Medicaid	AZ	-
WCSKQ	Other	AZ	SUN HEALTH GROUP #
35706	Other	AZ	AZ LICENSE #
CPSO 72684	Other	AZ	ONTARIO MEDICAL LICENSE

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

What specialty is Mark Peterson?

Mark Peterson is registered in NPPES with the primary taxonomy of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Other providers at this practice address

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Rajagopalan Ravi Surgery Physician · Phoenix, AZ NPI 1215938147 Robert Strumpf Cardiovascular Disease Physician · Phoenix, AZ NPI 1104827856 Loretta Weckerly Adult Health Nurse Practitioner · Phoenix, AZ NPI 1164415725 Shani Saks Internal Medicine Physician · Phoenix, AZ NPI 1023001682 Ayman Jamal Cardiovascular Disease Physician · Phoenix, AZ NPI 1083600845 Neil Goldberg Interventional Cardiology Physician · Phoenix, AZ NPI 1184612251 Ernesto Cruz Cardiovascular Disease Physician · Phoenix, AZ NPI 1134190135 Arizona Heart Institute Ltd Cardiovascular Disease Physician · Phoenix, AZ NPI 1114999604

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-18.