Dr Martin A Portillo, MD - Medicare Internal Medicine in Gaithersburg, MD

Dr Martin A Portillo, MD is a medicare enrolled "Internal Medicine" physician in Gaithersburg, Maryland. His current practice location is 501 North Frederick Avenue, Gaithersburg, Maryland. You can reach out to his office (for appointments etc.) via phone at (301) 258-7265.

Dr Martin A Portillo is licensed to practice in Maryland (license number D0042033) 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 1134292493.

Contact Information

Dr Martin A Portillo, MD
501 North Frederick Avenue,
Gaithersburg, MD 20877-2598
(301) 258-7265
(301) 258-7135

Map and Direction




Physician's Profile

Full NameDr Martin A Portillo
GenderMale
SpecialityInternal Medicine
Location501 North Frederick Avenue, Gaithersburg, Maryland
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1134292493
  • Provider Enumeration Date: 11/16/2006
  • Last Update Date: 11/14/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 7911039227
  • Enrollment ID: I20190702001248

Medical Identifiers

Medical identifiers for Dr Martin A Portillo such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1134292493NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine D0042033 (Maryland)Primary
207R00000XInternal Medicine MD19316 (District Of Columbia)Secondary

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 Martin A Portillo allows following entities to bill medicare on his behalf.
Entity NameThe Moses H Cone Memorial Hospital Operating Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1356372064
PECOS PAC ID: 6204744600
Enrollment ID: O20031124000541
Entity NameThe Moses H Cone Memorial Hospital Operating Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013265909
PECOS PAC ID: 6204744600
Enrollment ID: O20121003000518
Entity NameThe Moses H Cone Memorial Hospital Operating Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801137435
PECOS PAC ID: 6204744600
Enrollment ID: O20130717000817

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 Martin A Portillo 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 Martin A Portillo, MD
2101 East Jefferson Street, Ppqa Medicare Compliance Unit 6 West Attn Theresa Brook,
Rockville, MD 20852-4908

Ph: (301) 816-6660
Dr Martin A Portillo, MD
501 North Frederick Avenue,
Gaithersburg, MD 20877-2598

Ph: (301) 258-7265

Reviews and Comments


Internal Medicine Doctors in Gaithersburg, MD

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Jesus Benjamin Untiveros, MEDICAL DEGREE
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Phone: 301-330-4400    Fax: 301-330-7343

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.