Leonard A Haas, MD - Medicare Pediatrics in Baltimore, MD

Leonard A Haas, MD is a medicare enrolled "Pediatrics - Pediatric Gastroenterology" physician in Baltimore, Maryland. His current practice location is 600 N Wolfe Street, Cmsc 2-124, Baltimore, Maryland. You can reach out to his office (for appointments etc.) via phone at (443) 997-5437.

Leonard A Haas is licensed to practice in Maryland (license number D91137) 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 1073019584.

Contact Information

Leonard A Haas, MD
600 N Wolfe Street, Cmsc 2-124,
Baltimore, MD 21287
(443) 997-5437
Not Available



Physician's Profile

Full NameLeonard A Haas
GenderMale
SpecialityPediatrics - Pediatric Gastroenterology
Location600 N Wolfe Street, Baltimore, Maryland
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1073019584
  • Provider Enumeration Date: 04/03/2018
  • Last Update Date: 11/22/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 8022486646
  • Enrollment ID: I20221201001505

Medical Identifiers

Medical identifiers for Leonard A Haas such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1073019584NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2080P0206XPediatrics - Pediatric Gastroenterology D91137 (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. Leonard A Haas allows following entities to bill medicare on his behalf.
Entity NameJohns Hopkins University
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1922008549
PECOS PAC ID: 8921903147
Enrollment ID: O20031215000719

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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. Leonard A Haas 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
Leonard A Haas, MD
6711 Park Heights Ave Apt 217,
Baltimore, MD 21215-2479

Ph: (908) 391-4927
Leonard A Haas, MD
600 N Wolfe Street, Cmsc 2-124,
Baltimore, MD 21287

Ph: (443) 997-5437

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Pediatrics Doctors in Baltimore, MD

Hilary Tamara Wolf, MD
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 22 S Greene St, Baltimore, MD 21201
Phone: 410-328-7373    Fax: 410-328-7305
Dr. Carmel Bogle, M.D.
Pediatrics
Medicare: Accepting Medicare Assignments
Practice Location: 1800 Orleans St, Baltimore, MD 21287
Phone: 443-287-0526    Fax: 410-955-0897
Anna Eunjoo Choe,
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 615 N Wolfe St Rm Wb602, Baltimore, MD 21205
Phone: 410-955-3362    Fax: 410-614-1582
Dr. Melissa Lauren Shapiro, M.D.
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 2411 W Belvedere Ave Ste 407, Baltimore, MD 21215
Phone: 410-601-8663    
Dr. Alexander James Jaksic, MD
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 600 N Wolfe St, Baltimore, MD 21287
Phone: 781-223-0948    
Adam J Spanier, M.D.
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 300 Armory Pl, Baltimore, MD 21201
Phone: 410-225-8780    Fax: 410-225-8766
Milagritos D Tapia, MD
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 22 S Greene St, Baltimore, MD 21201
Phone: 410-328-6749    Fax: 410-328-6136

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