Daniel Jay Wallach, MD - Medicare Internal Medicine in Washington, DC

Daniel Jay Wallach, MD is a medicare enrolled "Internal Medicine" physician in Washington, District Of Columbia. He went to Northwestern University Feinberg Medical School and graduated in 2015 and has 9 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Medstar Medical Group Ii Llc and his current practice location is 110 Irving St Nw, Washington, District Of Columbia. You can reach out to his office (for appointments etc.) via phone at (202) 877-7000.

Daniel Jay Wallach is licensed to practice in District Of Columbia (license number MD046458) 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 1457741365.

Contact Information

Daniel Jay Wallach, MD
110 Irving St Nw,
Washington, DC 20010-3017
(202) 877-7000
Not Available

Map and Direction




Physician's Profile

Full NameDaniel Jay Wallach
GenderMale
SpecialityInternal Medicine
Experience9 Years
Location110 Irving St Nw, Washington, District Of Columbia
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:
  • Daniel Jay Wallach attended and graduated from Northwestern University Feinberg Medical School in 2015
  NPI Data:
  • NPI Number: 1457741365
  • Provider Enumeration Date: 01/30/2015
  • Last Update Date: 01/09/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 8628315645
  • Enrollment ID: I20190130000331

Medical Identifiers

Medical identifiers for Daniel Jay Wallach such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1457741365NPI-NPPES
MD046458OtherDCDISTRICT OF COLUMBIA
0101264875OtherVAVIRGINIA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine MD046458 (District Of Columbia)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Medstar Washington Hospital CenterWashington, DCHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Medstar Medical Group Ii Llc05474138251790

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. Daniel Jay Wallach allows following entities to bill medicare on his behalf.
Entity NameWhc Physician Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700154226
PECOS PAC ID: 6103093513
Enrollment ID: O20120125000252
Entity NameMedstar Medical Group Ii Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184046187
PECOS PAC ID: 0547413825
Enrollment ID: O20130117000415

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. Daniel Jay Wallach 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
Daniel Jay Wallach, MD
110 Irving St Nw,
Washington, DC 20010-3017

Ph: (202) 877-7000
Daniel Jay Wallach, MD
110 Irving St Nw,
Washington, DC 20010-3017

Ph: (202) 877-7000

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.

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.