Mr John Gambrill Jr, MD - Medicare Ophthalmology in Catonsville, MD

Mr John Gambrill Jr, MD is a medicare enrolled "Ophthalmology" physician in Catonsville, Maryland. He graduated from medical school in 1972 and has 52 years of diverse experience with area of expertise as Ophthalmology. He is a member of the group practice Clinical Associates P A and his current practice location is 715 Maiden Choice Ln, Catonsville, Maryland. You can reach out to his office (for appointments etc.) via phone at (410) 247-5602.

Mr John Gambrill Jr is licensed to practice in Maryland (license number D15995) 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 1710033022.

Contact Information

Mr John Gambrill Jr, MD
715 Maiden Choice Ln,
Catonsville, MD 21228-5999
(410) 247-5602
(410) 242-1756

Map and Direction




Physician's Profile

Full NameMr John Gambrill Jr
GenderMale
SpecialityOphthalmology
Experience52 Years
Location715 Maiden Choice Ln, Catonsville, Maryland
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 John Gambrill Jr graduated from medical school in 1972
  NPI Data:
  • NPI Number: 1710033022
  • Provider Enumeration Date: 01/27/2007
  • Last Update Date: 03/19/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 7315090412
  • Enrollment ID: I20090807000229

Medical Identifiers

Medical identifiers for Mr John Gambrill Jr such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1710033022NPI-NPPES
200591360MedicaidMD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology D15995 (Maryland)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Clinical Associates P A125463100548

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 John Gambrill Jr allows following entities to bill medicare on his behalf.
Entity NameClinical Associates P A
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1871973628
PECOS PAC ID: 1254631005
Enrollment ID: O20151130000953

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 John Gambrill Jr 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 John Gambrill Jr, MD
715 Maiden Choice Ln,
Catonsville, MD 21228-5999

Ph: (410) 247-5602
Mr John Gambrill Jr, MD
715 Maiden Choice Ln,
Catonsville, MD 21228-5999

Ph: (410) 247-5602

Reviews and Comments


Ophthalmology Doctors in Catonsville, MD

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Phone: 410-744-4341    
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Practice Location: 4 W Rolling Crossroads, Suite 7, Catonsville, MD 21228
Phone: 410-869-1990    Fax: 410-869-1992

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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