Mr Mark M Lessner, MD - Medicare Pediatric Medicine in Parker, AZ

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Mr Mark M Lessner, MD is a medicare enrolled "Pediatrics" physician in Parker, Arizona. He went to University Of Arizona College Of Medicine and graduated in 1975 and has 51 years of diverse experience with area of expertise as Pediatric Medicine. He is a member of the group practice San Luis Walk-in Clinic Inc and his current practice location is 601 W Riverside Dr Ste 2, Parker, Arizona. You can reach out to his office (for appointments etc.) via phone at (928) 256-4110.

Mr Mark M Lessner is licensed to practice in California (license number 33868) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1497857999.

Contact Information

Mr Mark M Lessner, MD
601 W Riverside Dr Ste 2,
Parker, AZ 85344-5119
(928) 256-4110
(928) 722-6113

Map and Direction




Physician's Profile

Full NameMr Mark M Lessner
GenderMale
SpecialityPediatric Medicine
Experience51 Years
Location601 W Riverside Dr Ste 2, Parker, Arizona
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Mr Mark M Lessner attended and graduated from University Of Arizona College Of Medicine in 1975
  NPI Data:
  • NPI Number: 1497857999
  • Provider Enumeration Date: 09/04/2006
  • Last Update Date: 05/19/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 2961485859
  • Enrollment ID: I20191114000192

Medical Identifiers

Medical identifiers for Mr Mark M Lessner such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1497857999NPI-NPPES
594551MedicaidAZ

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine G33868 (California)Secondary
208000000XPediatrics 33868 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
San Luis Walk-in Clinic Inc266836184144

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Mr Mark M Lessner allows following entities to bill medicare on his behalf.
Entity NameSan Luis Walk-in Clinic Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1104228337
PECOS PAC ID: 2668361841
Enrollment ID: O20040514000795
Entity NameWalker Family Medicine Plc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1194907758
PECOS PAC ID: 1557445004
Enrollment ID: O20080222000388

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Mr Mark M Lessner is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Mr Mark M Lessner, MD
1079 Eucalyptus St, Suite#a,
Manteca, CA 95337

Ph: (209) 239-6008		Mr Mark M Lessner, MD
601 W Riverside Dr Ste 2,
Parker, AZ 85344-5119

Ph: (928) 256-4110

Reviews and Comments


Pediatrics Doctors in Parker, AZ

Alice D. Calhoun, M.D.
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 12033 Agency Rd, Parker, AZ 85344
Phone: 928-669-3246    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.