Dr Peter J Lennarson, MD - Medicare Neurosurgery in Denver, CO

Dr Peter J Lennarson, MD is a medicare enrolled "Neurological Surgery" physician in Denver, Colorado. He went to University Of Wisconsin School Of Medicine and graduated in 1995 and has 29 years of diverse experience with area of expertise as Neurosurgery. He is a member of the group practice University Physicians Incorporated and his current practice location is 2045 N Franklin St, Denver, Colorado. You can reach out to his office (for appointments etc.) via phone at (303) 338-4545.

Dr Peter J Lennarson is licensed to practice in Colorado (license number 52461) 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 1013966001.

Contact Information

Dr Peter J Lennarson, MD
2045 N Franklin St,
Denver, CO 80205-5437
(303) 338-4545
Not Available

Map and Direction




Physician's Profile

Full NameDr Peter J Lennarson
GenderMale
SpecialityNeurosurgery
Experience29 Years
Location2045 N Franklin St, Denver, Colorado
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:
  • Dr Peter J Lennarson attended and graduated from University Of Wisconsin School Of Medicine in 1995
  NPI Data:
  • NPI Number: 1013966001
  • Provider Enumeration Date: 05/08/2006
  • Last Update Date: 07/21/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 4183669898
  • Enrollment ID: I20130904000291

Medical Identifiers

Medical identifiers for Dr Peter J Lennarson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1013966001NPI-NPPES
47078557581MedicaidNE
023407OtherCOKAISER COMMERCIAL NUMBER
87629267MedicaidCO

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207T00000XNeurological Surgery 23280 (Nebraska)Secondary
207T00000XNeurological Surgery 52461 (Colorado)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
University Of Colorado Hospital AuthorityAurora, COHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
University Physicians Incorporated34764656672639

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. Dr Peter J Lennarson allows following entities to bill medicare on his behalf.
Entity NameDenver Health And Hospital Authority
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477569838
PECOS PAC ID: 4688583578
Enrollment ID: O20031105000211
Entity NameUniversity Physicians Incorporated
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1962461889
PECOS PAC ID: 3476465667
Enrollment ID: O20031105000375

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. Dr Peter J Lennarson 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
Dr Peter J Lennarson, MD
2045 N Franklin St,
Denver, CO 80205-5437

Ph: (303) 338-4545
Dr Peter J Lennarson, MD
2045 N Franklin St,
Denver, CO 80205-5437

Ph: (303) 338-4545

Reviews and Comments


Neurological Surgery Doctors in Denver, CO

Edward H Maa, MD
Neurological Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 777 Bannock St, Mc 7782, Denver, CO 80204
Phone: 303-436-6000    
Kathryn M Beauchamp, MD
Neurological Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 777 Bannock St, Mc 7782, Denver, CO 80204
Phone: 303-426-6000    
Dr. Jerzy Wayne Rokicki, M.D., PH.D.
Neurological Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 2045 N Franklin St, Denver, CO 80205
Phone: 303-338-4545    Fax: 303-344-7715
Dr. Todd S Crawford, M.D.
Neurological Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 2045 N Franklin St, Denver, CO 80205
Phone: 303-338-4545    
Dr. Sean E Markey, M.D.
Neurological Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 850 E Harvard Ave Ste 255, Denver, CO 80210
Phone: 303-996-7555    Fax: 303-996-7556
Dr. Saul S Schwarz, MD
Neurological Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 2045 Franklin St, Denver, CO 80205
Phone: 303-338-4545    

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.