William Graham Carlos Iii, MD - Medicare Pulmonary Disease in Indianapolis, IN

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William Graham Carlos Iii, MD is a medicare enrolled "Internal Medicine - Pulmonary Disease" physician in Indianapolis, Indiana. He went to Indiana University School Of Medicine and graduated in 2005 and has 20 years of diverse experience with area of expertise as Pulmonary Disease. He is a member of the group practice University Medical Diagnostic Associates Inc, Iu Health Medical Group Llc and his current practice location is 720 Eskenazi Ave, H6-510, Indianapolis, Indiana. You can reach out to his office (for appointments etc.) via phone at (317) 880-7819.

William Graham Carlos Iii is licensed to practice in Indiana (license number 01062620A) 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 1245403427.

Contact Information

William Graham Carlos Iii, MD
720 Eskenazi Ave, H6-510,
Indianapolis, IN 46202-5166
(317) 880-7819
(317) 278-0027

Map and Direction




Physician's Profile

Full NameWilliam Graham Carlos Iii
GenderMale
SpecialityPulmonary Disease
Experience20 Years
Location720 Eskenazi Ave, Indianapolis, Indiana
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:
  • William Graham Carlos Iii attended and graduated from Indiana University School Of Medicine in 2005
  NPI Data:
  • NPI Number: 1245403427
  • Provider Enumeration Date: 04/08/2008
  • Last Update Date: 07/29/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 6800962820
  • Enrollment ID: I20080827000422

Medical Identifiers

Medical identifiers for William Graham Carlos Iii such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1245403427NPI-NPPES
000000701666OtherINANTHEM PTAN
200912740MedicaidIN
000001024448OtherINANTHEM PTAN
P00984592OtherINRAILROAD MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 01062620A (Indiana)Secondary
207RC0200XInternal Medicine - Critical Care Medicine 01062620A (Indiana)Secondary
207RP1001XInternal Medicine - Pulmonary Disease 01062620A (Indiana)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Eskenazi HealthIndianapolis, INHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
University Medical Diagnostic Associates Inc3375446347247
Iu Health Medical Group Llc96386179131024

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. William Graham Carlos Iii allows following entities to bill medicare on his behalf.
Entity NameEskenazi Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1730451063
PECOS PAC ID: 4284546813
Enrollment ID: O20031103000440
Entity NameUniversity Medical Diagnostic Associates Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861441537
PECOS PAC ID: 3375446347
Enrollment ID: O20040202000510
Entity NameThe Health And Hospital Corporation Of Marion County
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1104027879
PECOS PAC ID: 6709795974
Enrollment ID: O20041229000426
Entity NameIndiana Clinic Critical Care Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1417285230
PECOS PAC ID: 3678600988
Enrollment ID: O20100419000408
Entity NameIu Health Medical Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1326893777
PECOS PAC ID: 9638617913
Enrollment ID: O20240817000533

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. William Graham Carlos Iii 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
William Graham Carlos Iii, MD
250 N Shadeland Ave,
Indianapolis, IN 46219-4959

Ph: () -		William Graham Carlos Iii, MD
720 Eskenazi Ave, H6-510,
Indianapolis, IN 46202-5166

Ph: (317) 880-7819

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.

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