Leo I Stemp, MD - Medicare Anesthesiology in Springfield, MA

Leo I Stemp, MD is a medicare enrolled "Internal Medicine - Critical Care Medicine" physician in Springfield, Massachusetts. He went to Harvard Medical School and graduated in 1983 and has 41 years of diverse experience with area of expertise as Anesthesiology. He is a member of the group practice Holyoke Medical Center Inc, Adfinitas Health At The Mercy Hospital Pllc and his current practice location is 300 Stafford St, Suite 300, Springfield, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (413) 748-9860.

Leo I Stemp is licensed to practice in Massachusetts (license number 78458) 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 1528020278.

Contact Information

Leo I Stemp, MD
300 Stafford St, Suite 300,
Springfield, MA 01104-3581
(413) 748-9860
Not Available

Map and Direction




Physician's Profile

Full NameLeo I Stemp
GenderMale
SpecialityAnesthesiology
Experience41 Years
Location300 Stafford St, Springfield, Massachusetts
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:
  • Leo I Stemp attended and graduated from Harvard Medical School in 1983
  NPI Data:
  • NPI Number: 1528020278
  • Provider Enumeration Date: 04/06/2006
  • Last Update Date: 01/10/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 4688622251
  • Enrollment ID: I20050111000049

Medical Identifiers

Medical identifiers for Leo I Stemp such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1528020278NPI-NPPES
3142400MedicaidMA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207L00000XAnesthesiology 78458 (Massachusetts)Secondary
207RC0200XInternal Medicine - Critical Care Medicine 78458 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Holyoke Medical CenterHolyoke, MAHospital
Mercy Medical CtrSpringfield, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Holyoke Medical Center Inc2163419383122
Adfinitas Health At The Mercy Hospital Pllc903244229813

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. Leo I Stemp allows following entities to bill medicare on his behalf.
Entity NameHolyoke Medical Center Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1750395737
PECOS PAC ID: 2163419383
Enrollment ID: O20040429000312
Entity NameHolyoke Medical Center Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1992923486
PECOS PAC ID: 2163419383
Enrollment ID: O20051219000359
Entity NameAdfinitas Health At The Mercy Hospital Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1669036737
PECOS PAC ID: 9032442298
Enrollment ID: O20190604000980
Entity NameAdfinitas Health Palliative Services, Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1336879279
PECOS PAC ID: 1355743584
Enrollment ID: O20230210000461

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. Leo I Stemp 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
Leo I Stemp, MD
157 Newgate Rd,
East Granby, CT 06026-9545

Ph: (413) 537-7526
Leo I Stemp, MD
300 Stafford St, Suite 300,
Springfield, MA 01104-3581

Ph: (413) 748-9860

Reviews and Comments


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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).

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