G Gregory Clark, MD - Medicare Ophthalmology in Indianapolis, IN

G Gregory Clark, MD is a medicare enrolled "Ophthalmology" physician in Indianapolis, Indiana. His current practice location is 9002 N Meridian St, Suite 112, Indianapolis, Indiana. You can reach out to his office (for appointments etc.) via phone at (317) 843-9005.

G Gregory Clark is licensed to practice in Indiana (license number 0132124A) 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 1679642912.

Contact Information

G Gregory Clark, MD
9002 N Meridian St, Suite 112,
Indianapolis, IN 46260-5381
(317) 843-9005
(317) 580-0443

Map and Direction




Physician's Profile

Full NameG Gregory Clark
GenderMale
SpecialityOphthalmology
Location9002 N Meridian St, Indianapolis, Indiana
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1679642912
  • Provider Enumeration Date: 11/08/2006
  • Last Update Date: 01/05/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 0749377315
  • Enrollment ID: I20071029000563

Medical Identifiers

Medical identifiers for G Gregory Clark such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1679642912NPI-NPPES
100326120MedicaidIN
000000538215OtherINBLUE CROSS/BLUE SHIELD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology 0132124A (Indiana)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. G Gregory Clark allows following entities to bill medicare on his behalf.
Entity NameVisionary Eye Specialists Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1316566797
PECOS PAC ID: 1759705973
Enrollment ID: O20200721003471

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. G Gregory Clark 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
G Gregory Clark, MD
9002 N Meridian St, Suite 112,
Indianapolis, IN 46260-5381

Ph: (317) 843-9005
G Gregory Clark, MD
9002 N Meridian St, Suite 112,
Indianapolis, IN 46260-5381

Ph: (317) 843-9005

Reviews and Comments


Ophthalmology Doctors in Indianapolis, IN

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Keith R Knuth, MD
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Practice Location: 901 E 86th St, Indianapolis, IN 46240
Phone: 317-844-5500    Fax: 317-573-4230

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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