David Rayan, DO - Medicare Internal Medicine in Milwaukee, WI

David Rayan, DO is a medicare enrolled "Internal Medicine" physician in Milwaukee, Wisconsin. His current practice location is 2900 W Oklahoma Ave, Milwaukee, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (414) 649-6000.

David Rayan is licensed to practice in Wisconsin (license number 7435221) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1194287870.

Contact Information

David Rayan, DO
2900 W Oklahoma Ave,
Milwaukee, WI 53215-4330
(414) 649-6000
(414) 649-6583

Map and Direction




Physician's Profile

Full NameDavid Rayan
GenderMale
SpecialityInternal Medicine
Location2900 W Oklahoma Ave, Milwaukee, Wisconsin
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1194287870
  • Provider Enumeration Date: 04/02/2019
  • Last Update Date: 05/08/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 0840626149
  • Enrollment ID: I20230505000530

Medical Identifiers

Medical identifiers for David Rayan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1194287870NPI-NPPES
100135014MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease 7435221 (Wisconsin)Secondary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))Secondary
207R00000XInternal Medicine 7435221 (Wisconsin)Primary

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. David Rayan allows following entities to bill medicare on his behalf.
Entity NameAurora Medical Group, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1427271378
PECOS PAC ID: 6709794258
Enrollment ID: O20031105000725
Entity NameLakeshore Medical Clinic Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1003861188
PECOS PAC ID: 7719890730
Enrollment ID: O20031106000481
Entity NameAurora Advanced Healthcare Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1265629133
PECOS PAC ID: 3375625833
Enrollment ID: O20080123000694

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. David Rayan 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
David Rayan, DO
Po Box 735044,
Chicaog, IL 60673-5044

Ph: (414) 325-5244
David Rayan, DO
2900 W Oklahoma Ave,
Milwaukee, WI 53215-4330

Ph: (414) 649-6000

Reviews and Comments


Internal Medicine Doctors in Milwaukee, WI

Julia Bonner, M.D.
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Phone: 414-229-5684    
Dr. Zachary Smith, DO
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Phone: 414-955-6830    Fax: 414-955-6214
Dr. Christopher Patrick Boyd, MD
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Umair Bajwa, M.D.
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Rasika Surajyam Chepuri, M.D.
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Phone: 414-955-7040    Fax: 414-955-6211
Soryal A Soryal, M.D
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Practice Location: 1020 N 12th St, 3rd Floor, Milwaukee, WI 53233
Phone: 414-219-7300    
Aboud Affi, M.D.
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Practice Location: 1218 W Kilbourn Ave, Suite 404, Milwaukee, WI 53233
Phone: 414-291-3100    

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.