Dr Warren K Eng, MD - Medicare Anesthesiology in Bethesda, MD

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Dr Warren K Eng, MD is a medicare enrolled "Anesthesiology" physician in Bethesda, Maryland. His current practice location is 8901 Rockville Pike, Bethesda, Maryland. You can reach out to his office (for appointments etc.) via phone at (301) 319-8747.

Dr Warren K Eng is licensed to practice in Maryland (license number D65547) 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 1376766501.

Contact Information

Dr Warren K Eng, MD
8901 Rockville Pike,
Bethesda, MD 20889-0001
(301) 319-8747
Not Available

Map and Direction




Physician's Profile

Full NameDr Warren K Eng
GenderMale
SpecialityAnesthesiology
Location8901 Rockville Pike, Bethesda, Maryland
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1376766501
  • Provider Enumeration Date: 04/10/2007
  • Last Update Date: 12/08/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 1557456746
  • Enrollment ID: I20071003000231

Medical Identifiers

Medical identifiers for Dr Warren K Eng such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1376766501NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207L00000XAnesthesiology D65547 (Maryland)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. Dr Warren K Eng allows following entities to bill medicare on his behalf.
Entity NameReston Anesthesia Associates Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1932210093
PECOS PAC ID: 2567361124
Enrollment ID: O20040102000829
Entity NameKaiser Foundation Health Plan Of The Mid Atlantic States, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952461816
PECOS PAC ID: 3779495858
Enrollment ID: O20040105000308
Entity NameHoly Cross Anesthesiology Associate, Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376501007
PECOS PAC ID: 3577454313
Enrollment ID: O20040322001776
Entity NameFirst Colonies Anesthesia Associates, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1740218767
PECOS PAC ID: 8426039744
Enrollment ID: O20040607001456
Entity NameKaiser Foundation Health Plan Of The Mid Atlantic States, Inc
Entity TypePart B Supplier - Ambulatory Surgical Center
Entity IdentifiersNPI Number: 1578638425
PECOS PAC ID: 3779495858
Enrollment ID: O20040805001280
Entity NameKaiser Foundation Health Plan Of The Mid Atlantic States, Inc
Entity TypePart B Supplier - Ambulatory Surgical Center
Entity IdentifiersNPI Number: 1073678637
PECOS PAC ID: 3779495858
Enrollment ID: O20100729000796
Entity NameKaiser Foundation Health Plan Of The Mid Atlantic States, Inc
Entity TypePart B Supplier - Ambulatory Surgical Center
Entity IdentifiersNPI Number: 1366781700
PECOS PAC ID: 3779495858
Enrollment ID: O20130507000207
Entity NameKaiser Foundation Health Plan Of The Mid Atlantic States, Inc
Entity TypePart B Supplier - Ambulatory Surgical Center
Entity IdentifiersNPI Number: 1497023188
PECOS PAC ID: 3779495858
Enrollment ID: O20131029000108
Entity NameCapitol Anesthesia Associates Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1194106955
PECOS PAC ID: 3274848320
Enrollment ID: O20150818005376

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 Warren K Eng 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 Warren K Eng, MD
8901 Rockville Pike,
Bethesda, MD 20889-0001

Ph: (301) 319-8747		Dr Warren K Eng, MD
8901 Rockville Pike,
Bethesda, MD 20889-0001

Ph: (301) 319-8747

Reviews and Comments


Anesthesiology Doctors in Bethesda, MD

Matthew Nicholas Ribeiro, MD
Anesthesiology
Medicare: Medicare Enrolled
Practice Location: 8901 Rockville Pike, Bethesda, MD 20889
Phone: 301-295-4000    
Dr. Ali Akber Turabi, M.D
Anesthesiology
Medicare: Medicare Enrolled
Practice Location: 4494 Palmer, Bethesda, MD 20889
Phone: 253-968-2543    
Poly-anna Silver, MD
Anesthesiology
Medicare: Not Enrolled in Medicare
Practice Location: 8901 Wisconsin Ave, Bethesda, MD 20889
Phone: 301-295-4455    
Dr. Bradley Allen Ullman, MD
Anesthesiology
Medicare: Accepting Medicare Assignments
Practice Location: 8901 Rockville Pike, Bethesda, MD 20889
Phone: 740-336-9469    
Quentin A Fisher, MD
Anesthesiology
Medicare: Medicare Enrolled
Practice Location: 6213 Stoneham Rd, Bethesda, MD 20817
Phone: 301-530-0125    
Dr. Mark E Schutz, MD
Anesthesiology
Medicare: Not Enrolled in Medicare
Practice Location: 5110 Ridgefield Rd, Bethesda, MD 20816
Phone: 301-652-7130    
Dr. Rupa J. Dainer, M.D.
Anesthesiology
Medicare: Medicare Enrolled
Practice Location: 6707 Goldsboro Rd, Bethesda, MD 20817
Phone: 301-437-0818    Fax: 301-941-3411

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.