Dr Anna Ahn, MD - Medicare Pulmonary Disease in Stony Brook, NY

Dr Anna Ahn, MD is a medicare enrolled "Internal Medicine" physician in Stony Brook, New York. She went to New York Medical College and graduated in 2003 and has 21 years of diverse experience with area of expertise as Pulmonary Disease. She is a member of the group practice University Of Maryland Community Medical Group Inc and her current practice location is Medical Staff Office T9, Stony Brook University Hospital, Stony Brook, New York. You can reach out to her office (for appointments etc.) via phone at (631) 444-2754.

Dr Anna Ahn is licensed to practice in Maryland (license number D75970) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1700105533.

Contact Information

Dr Anna Ahn, MD
Medical Staff Office T9, Stony Brook University Hospital,
Stony Brook, NY 11794
(631) 444-2754
(631) 444-6031

Map and Direction




Physician's Profile

Full NameDr Anna Ahn
GenderFemale
SpecialityPulmonary Disease
Experience21 Years
LocationMedical Staff Office T9, Stony Brook, New York
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Anna Ahn attended and graduated from New York Medical College in 2003
  NPI Data:
  • NPI Number: 1700105533
  • Provider Enumeration Date: 05/18/2010
  • Last Update Date: 08/12/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 7012151467
  • Enrollment ID: I20130925000141

Medical Identifiers

Medical identifiers for Dr Anna Ahn such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1700105533NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 249976 (New York)Secondary
207R00000XInternal Medicine D75970 (Maryland)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Umd Shore Medical Center At EastonEaston, MDHospital
University Of Md Shore Medical Ctr At ChestertownChestertown, MDHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
University Of Maryland Community Medical Group Inc3678472214351

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. Dr Anna Ahn allows following entities to bill medicare on her behalf.
Entity NameUniversity Of Maryland Community Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477530624
PECOS PAC ID: 3678472214
Enrollment ID: O20040102000687

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. Dr Anna Ahn 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
Dr Anna Ahn, MD
920 Elkridge Landing Rd,
Linthicum, MD 21090-2917

Ph: (443) 462-5010
Dr Anna Ahn, MD
Medical Staff Office T9, Stony Brook University Hospital,
Stony Brook, NY 11794

Ph: (631) 444-2754

Reviews and Comments


Internal Medicine Doctors in Stony Brook, NY

Mohamed Hassan Kamel, MD
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Phone: 631-444-4000    
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Saverio J Barbera, M.D.
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Phone: 631-444-3575    Fax: 631-444-1054
Dr. Richard Lin, M.D.
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Dr. Ajay Malhotra, MD
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Practice Location: Hsc L4 Rm 120, Stony Brook, NY 11794
Phone: 631-444-5400    Fax: 631-444-7538
Dr. John Anthony Savino Iii, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1320 Stony Brook Rd Bldg D, Stony Brook, NY 11790
Phone: 212-241-1653    Fax: 212-289-6393

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.