Dr Anthony Mark Masi, MD - Medicare Sleep Medicine in Ballwin, MO

Dr Anthony Mark Masi, MD is a medicare enrolled "Internal Medicine - Sleep Medicine" physician in Ballwin, Missouri. He went to University Of Illinois College Of Med (chi/peor/rock/chm-urb) and graduated in 1987 and has 35 years of diverse experience with area of expertise as Sleep Medicine. His current practice location is 13975 Manchester Rd, Suite 7, Ballwin, Missouri. You can reach out to his office (for appointments etc.) via phone at (636) 391-1222.

Dr Anthony Mark Masi is licensed to practice in Missouri (license number R3P21) 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 1902884844.

Contact Information

Dr Anthony Mark Masi, MD
13975 Manchester Rd, Suite 7,
Ballwin, MO 63011-4500
(636) 391-1222
(636) 333-1259

Map and Direction




Physician's Profile

Full NameDr Anthony Mark Masi
GenderMale
SpecialitySleep Medicine
Experience35 Years
Location13975 Manchester Rd, Ballwin, Missouri
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:
  • Dr Anthony Mark Masi attended and graduated from University Of Illinois College Of Med (chi/peor/rock/chm-urb) in 1987
  NPI Data:
  • NPI Number: 1902884844
  • Provider Enumeration Date: 12/31/2005
  • Last Update Date: 06/06/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 5799789582
  • Enrollment ID: I20100602000819

Medical Identifiers

Medical identifiers for Dr Anthony Mark Masi such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1902884844NPI-NPPES
203472246MedicaidMO
290015378OtherMORAILROAD MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RP1001XInternal Medicine - Pulmonary Disease R3P21 (Missouri)Secondary
207RS0012XInternal Medicine - Sleep Medicine R3P21 (Missouri)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 Anthony Mark Masi allows following entities to bill medicare on his behalf.
Entity NameLung & Sleep Medicine, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1841487097
PECOS PAC ID: 2062451370
Enrollment ID: O20050427000035

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 Anthony Mark Masi 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 Anthony Mark Masi, MD
13975 Manchester Rd, Suite 7,
Ballwin, MO 63011-4500

Ph: (636) 391-1222
Dr Anthony Mark Masi, MD
13975 Manchester Rd, Suite 7,
Ballwin, MO 63011-4500

Ph: (636) 391-1222

Reviews and Comments


Internal Medicine Doctors in Ballwin, MO

Dr. Mazin Hazim Kamil, MD
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Phone: 094-122-2052    
Christine A. Sigman, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 15945 Clayton Rd, Suite 310, Ballwin, MO 63011
Phone: 636-256-5350    Fax: 636-256-5370
Dr. David S Rosenberg, M.D.
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Medicare: Medicare Enrolled
Practice Location: 58 Meadowbrook Cntry Cl Est, Ballwin, MO 63011
Phone: 314-420-6663    Fax: 636-227-2299
Lauren Bush King, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 15945 Clayton Rd, Suite 340, Ballwin, MO 63011
Phone: 636-256-5130    Fax: 636-256-5147
David M. Schoenwalder, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 15945 Clayton Rd, Suite 310, Ballwin, MO 63011
Phone: 636-256-5350    Fax: 636-256-5372
Dr. James W Ketchum, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 15945 Clayton Rd, Suite 310, Ballwin, MO 63011
Phone: 636-256-5350    Fax: 636-256-5372
Binwant K Singh, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 452a Sovereign Ct, Ballwin, MO 63011
Phone: 636-222-8699    

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.