Gregg A Lessly, MD - Medicare Anesthesiology in Mckinney, TX

Gregg A Lessly, MD is a medicare enrolled "Anesthesiology" physician in Mckinney, Texas. He went to State University Of Ny Upstate Medical University and graduated in 1990 and has 34 years of diverse experience with area of expertise as Anesthesiology. He is a member of the group practice Allen Anesthesia Associates and his current practice location is 4510 Medical Center Dr Ste 211, Mckinney, Texas. You can reach out to his office (for appointments etc.) via phone at (469) 541-1600.

Gregg A Lessly is licensed to practice in Texas (license number L8412) 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 1003842907.

Contact Information

Gregg A Lessly, MD
4510 Medical Center Dr Ste 211,
Mckinney, TX 75069-1602
(469) 541-1600
(469) 541-1612

Map and Direction




Physician's Profile

Full NameGregg A Lessly
GenderMale
SpecialityAnesthesiology
Experience34 Years
Location4510 Medical Center Dr Ste 211, Mckinney, Texas
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:
  • Gregg A Lessly attended and graduated from State University Of Ny Upstate Medical University in 1990
  NPI Data:
  • NPI Number: 1003842907
  • Provider Enumeration Date: 06/23/2006
  • Last Update Date: 09/28/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 7012979354
  • Enrollment ID: I20041030000161

Medical Identifiers

Medical identifiers for Gregg A Lessly such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1003842907NPI-NPPES
8BE093OtherTXBCBS
8P0970OtherTXBLUE SHIELD
P00719299OtherTXRAILROAD
169347501MedicaidTX
169347503MedicaidTX
169347502MedicaidTX

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207L00000XAnesthesiology L8412 (Texas)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Allen Anesthesia Associates226447714074

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. Gregg A Lessly allows following entities to bill medicare on his behalf.
Entity NameAllen Anesthesia Associates
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1265469357
PECOS PAC ID: 2264477140
Enrollment ID: O20050621001239

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. Gregg A Lessly 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
Gregg A Lessly, MD
906 West Mcdermott Drive, #116-371,
Allen, TX 75013-6510

Ph: (469) 541-1600
Gregg A Lessly, MD
4510 Medical Center Dr Ste 211,
Mckinney, TX 75069-1602

Ph: (469) 541-1600

Reviews and Comments


Anesthesiology Doctors in Mckinney, TX

Dr. Priscilla Danielle Clark, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 4510 Medical Center Dr Ste 211, Mckinney, TX 75069
Phone: 469-541-1601    Fax: 469-541-1612
Jimmy Le, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 4510 Medical Center Dr Ste 211, Mckinney, TX 75069
Phone: 469-541-1600    Fax: 469-541-1612
Dr. Robert Hughes Millwee Iv, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 4510 Medical Center Dr Ste 211, Mckinney, TX 75069
Phone: 469-541-1600    Fax: 469-541-1612
Dr. Raj P Singh, MD
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 4510 Medical Center Dr Ste 211, Mckinney, TX 75069
Phone: 469-541-1600    Fax: 469-541-1612
Dr. Julian K. Mardock, M.D.
Anesthesiology
Medicare: Not Enrolled in Medicare
Practice Location: 4500 Medical Center Dr, Mckinney, TX 75069
Phone: 972-547-8190    Fax: 972-547-8196
Dr. Vamseen Jetti, M.D.
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 4510 Medical Center Dr Ste 211, Mckinney, TX 75069
Phone: 469-541-1600    Fax: 469-541-1612

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.