Mark M. Lessner, M.D.
Pediatrics Physician · Parker, AZ
Mark M. Lessner, M.D. is a pediatrics physician with a practice address in Parker, Arizona, and NPI 1497857999, issued on Sep 4, 2006. Check the license on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark M. Lessner
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License numbers
- 33868 CA
G33868 CA
Self-reported in NPPES; status is on the state search - Practice location
- 601 W Riverside Dr Ste 2, Parker, AZ 85344
- Phone
- (928) 256-4110
- Enumerated
- Sep 4, 2006
- Record last updated
- May 19, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (928) 722-6113
- Medicaid ID
- 594551 AZ
- Medicare enrollment
- Enrolled (PECOS I20040610001827); accepts Medicare assignment
- Medical or professional school
- University Of Arizona College Of Medicine, 1975
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 1,309 in Arizona → Look up another NPI →
Also registered at 601 W Riverside Dr Ste 2
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kathy Kladar, FNP-BCPrimary Care Nurse Practitioner1497197594
- Jennifer Landrum, FNP-BCFamily Nurse Practitioner1720551732
Verify Mark M. Lessner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average pediatrics physician in 2024
50 Medicare Part D claims, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium13 claims
- Ezetimibe13 claims
- Levothyroxine Sodium11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- San Luis Walk-IN Clinic IncSan Luis, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark M. Lessner among 1,309 pediatrics physician records in Arizona
Mark M. Lessner, M.D. is one of 1,309 pediatrics physician records with a practice address in Arizona. 41% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 53% newer
- In a Medicare fileYes · 41% of these records are
- In the CMS Doctors and Clinicians fileYes · 8% of these records are
- Graduated1975 · median 2013 among the 105 with a school on file
- Record last updated2021 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatrics Physician providers in Arizona
There are 1,309 pediatrics physician records in Arizona.
All 1,309 in Arizona → Every provider in Parker → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Alice Calhoun, M.D.Parker, AZ 853441376510495
- Mark Salerno, M.D.Peoria, AZ 853451316214695
- Erin Schmidt, COTA/ LPeoria, AZ 853451669192464
- Anyah Sims, CPNP-PCLitchfield Park, AZ 853401043016405
- Sucharitha Gunasekera, M.D.San Luis, AZ 853491306046677
- Roderic Hartman, M.D.San Luis, AZ 853491962607317
- Victoria Lasala, M.D.San Luis, AZ 853491528500576
- Leonardo Rodriguez, M.D.San Luis, AZ 853491801007000
Common questions
What is Mark M. Lessner, M.D.'s NPI number?
Mark M. Lessner, M.D.'s National Provider Identifier (NPI) is 1497857999, issued on Sep 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark M. Lessner, M.D. located?
The NPPES record lists a practice address at 601 W Riverside Dr Ste 2, Parker, AZ, 85344. Phone: (928) 256-4110. Providers update this record themselves, so call before visiting.
How can I verify Mark M. Lessner, M.D.'s license?
Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark M. Lessner, M.D. prescribe under Medicare Part D?
In 2024, Mark M. Lessner, M.D. had 50 Medicare Part D claims; the average among pediatrics physician prescribers was 375. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.