Mr Michael R Grossman, MD - Medicare Gastroenterology in Enid, OK

Mr Michael R Grossman, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Enid, Oklahoma. He went to Howard University College Of Medicine and graduated in 1968 and has 56 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Union Associated Physicians Clinic, Llc and his current practice location is 330 S 5th St, Enid, Oklahoma. You can reach out to his office (for appointments etc.) via phone at (580) 249-3003.

Mr Michael R Grossman is licensed to practice in Oklahoma (license number 10463) 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 1538158233.

Contact Information

Mr Michael R Grossman, MD
330 S 5th St,
Enid, OK 73701-5825
(580) 249-3003
(580) 599-6447

Map and Direction




Physician's Profile

Full NameMr Michael R Grossman
GenderMale
SpecialityGastroenterology
Experience56 Years
Location330 S 5th St, Enid, Oklahoma
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 Michael R Grossman attended and graduated from Howard University College Of Medicine in 1968
  NPI Data:
  • NPI Number: 1538158233
  • Provider Enumeration Date: 10/17/2005
  • Last Update Date: 07/31/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 1355394743
  • Enrollment ID: I20231017003171

Medical Identifiers

Medical identifiers for Mr Michael R Grossman such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1538158233NPI-NPPES
1E4684OtherOKPTAN
100013500AMedicaidOK

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 10463 (Oklahoma)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Union Hospital IncTerre haute, INHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Union Associated Physicians Clinic, Llc3375687437165

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 Michael R Grossman allows following entities to bill medicare on his behalf.
Entity NameUnion Associated Physicians Clinic, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1891028379
PECOS PAC ID: 3375687437
Enrollment ID: O20100213000002

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 Michael R Grossman 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 Michael R Grossman, MD
Po Box 3046,
Malvern, PA 19355-0746

Ph: (580) 249-3003
Mr Michael R Grossman, MD
330 S 5th St,
Enid, OK 73701-5825

Ph: (580) 249-3003

Reviews and Comments


Internal Medicine Doctors in Enid, OK

Daniel Dean Washburn, MD
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Phone: 580-242-3090    Fax: 580-234-2090
Dr. Brian D. Whitson, M.D.
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Phone: 580-213-9741    Fax: 580-213-9740
Dr. Charles Lawrence Cannon, M.D.
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Phone: 580-233-2176    Fax: 580-233-2179
Sarah Beth Matousek-fraser, MD
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Practice Location: 620 S Madison St Ste 209, Enid, OK 73701
Phone: 580-977-1864    Fax: 580-977-1865
Christopher A Shearer, DO
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Medicare: Accepting Medicare Assignments
Practice Location: 915 E Garriott Rd, Suite C, Enid, OK 73701
Phone: 580-234-6425    Fax: 580-234-5176
David James Shepherd Jr., MD
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Medicare: Not Enrolled in Medicare
Practice Location: 721 W Broadway Ave Ste D, Enid, OK 73701
Phone: 580-237-0322    Fax: 580-233-0402
Sumbal Nabi, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 600 S Monroe St, Enid, OK 73701
Phone: 580-977-1950    Fax: 580-977-1949

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.