Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Mark M Lessner, M.D.
Pediatrics Physician in Parker, AZ · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1497857999
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Registry record
Entity type Individual (Type 1)
Name Mr. Mark M Lessner
Credential M.D.
Sex Male
Practice address 601 W Riverside Dr Ste 2, Parker, AZ, 85344
Phone (928) 256-4110
Fax (928) 722-6113
Enumeration date Sep 4, 2006
Last updated in NPPES May 19, 2021
Taxonomy & licenses
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License G33868 (CA) 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 |
|---|---|---|---|
| 594551 | Medicaid | AZ | - |
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.
Frequently asked questions
Where does Mark Lessner practice?
The practice location on file with NPPES is in Parker, AZ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mark Lessner?
The National Provider Identifier (NPI) for Mark Lessner is 1497857999, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Kathy Kladar Primary Care Nurse Practitioner · Parker, AZ NPI 1497197594 Jennifer Landrum Family Nurse Practitioner · Parker, AZ NPI 1720551732 San Luis Walk-in Clinic, Inc. Rural Health Clinic/Center · Parker, AZ NPI 1316568595 San Luis Walk-in Clinic, Inc. Rural Health Clinic/Center · Parker, AZ NPI 1497330633 Matthew Rohler Physician Assistant · Parker, AZ NPI 1962279950
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-19.