Dr Ernst John Schaefer, MD - Internal Medicine in Boston, MA

Dr Ernst John Schaefer, MD is a Internal Medicine - Endocrinology, Diabetes & Metabolism physician based in Boston, Massachusetts. Dr Ernst John Schaefer is licensed to practice in Massachusetts (license number 50085) and his current practice location is 252 Tremont St, Boston, Massachusetts. He can be reached at his office (for appointments etc.) via phone at (781) 258-1454.

NPI number for Dr Ernst John Schaefer is 1083803159 and his current mailing address is 711 Washington St, Boston, Massachusetts. He does not participate in medicare program and thus does not accept medicare assignments. His NPI Number is 1083803159.

Contact Information

Dr Ernst John Schaefer, MD
252 Tremont St,
Boston, MA 02116-5603
(781) 258-1454
Not Available



Physician's Profile

Full NameDr Ernst John Schaefer
GenderMale
SpecialityInternal Medicine - Endocrinology, Diabetes & Metabolism
Location252 Tremont St, Boston, Massachusetts
Accepts Medicare AssignmentsDoes not participate in Medicare Program. He may not accept medicare assignment.
  NPI Data:
  • NPI Number: 1083803159
  • Provider Enumeration Date: 10/15/2007
  • Last Update Date: 10/15/2007

Medical Identifiers

Medical identifiers for Dr Ernst John Schaefer such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1083803159NPI-NPPES
2080478MedicaidMA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism 50085 (Massachusetts)Primary

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 Ernst John Schaefer is NOT enrolled with medicare and thus cannot prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Ernst John Schaefer, MD
711 Washington St,
Boston, MA 02111-1524

Ph: (617) 556-3100
Dr Ernst John Schaefer, MD
252 Tremont St,
Boston, MA 02116-5603

Ph: (781) 258-1454

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Internal Medicine Doctors in Boston, MA

Kaitlyn My-tu Lam, MBBS
Endocrinology, Diabetes & Metabolism
Medicare: Not Enrolled in Medicare
Practice Location: Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114
Phone: 617-724-7738    
Kui Toh Gerard Leong, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Not Enrolled in Medicare
Practice Location: 55 Fruit Street, Massachusetts General Hospital, Boston, MA 02114
Phone: 617-726-8862    
Ruma Rajbhandari,
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 75 Francis St, Boston, MA 02115
Phone: 617-525-6841    
Alaka Ray, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114
Phone: 617-726-2066    
Meghan E Sise, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114
Phone: 617-726-2862    
Aaron Dickstein, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 800 Washington St, Box 233, Boston, MA 02111
Phone: 617-636-5883    Fax: 617-636-9292
Dr. Felicia Elizabeth Patch, MD
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 801 Massachusetts Ave, Crosstown 2, Boston, MA 02118
Phone: 617-414-4376    Fax: 617-414-4676

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