ALEXANDER J. AMBINDER M.D. – NPI #1629411558
Internal Medicine
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
ALEXANDER AMBINDER is a physician located in BALTIMORE, MD. NPPES has assigned the NPI number 1629411558 to ALEXANDER AMBINDER on April 10, 2013. It is a Type-1 NPI, indicating this NPI number is associated with an individual. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 207RH0003X from the Health Care Provider Taxonomy code set, which is classified as Internal Medicine, specializing in Hematology & Oncology
The NPI profile was last updated on Mar 16, 2026. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for ALEXANDER AMBINDER below.
NPI Profile for
ALEXANDER J. AMBINDER
(more than 13 years ago)
BALTIMORE, MD 21287-0013 Phone: (410) 614-4459 Fax: (410) 955-0125
MIDDLE RIVER, MD 21220-2004 Phone: (410) 933-1340 Fax:
Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.
Identifiers for ALEXANDER AMBINDER
Identifiers are used to associate other provider identifiers such as Medicaid or other insurers (ie:, Blue Cross, Blue Shield, Aetna, Kaiser-Permanente, etc.), with their NPI number. These identifiers can be used in matching an NPI number to an insurer's records. However, not all providers have such numbers and not all providers choose to include them in their NPI information.
| Description | Issuer | State | Identifier |
|---|---|---|---|
| other | MD LICENSE | MD | D81117 |
A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.
| Taxonomy Classification / Specialization | State | License |
|---|---|---|
| 207RH0003X - Internal Medicine / Hematology & Oncology (Primary) |
MD | D81117 |
| 207RX0202X - Internal Medicine / Medical Oncology |
MD | D0081117 |
The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.
Additional Information
- Refer to Part B
- Order Durable Medical Equipment
- Refer to Home Health Agency
- Order Power Mobility Devices
ALEXANDER AMBINDER is affiliated with the following medical group(s):
- HOSPITAL
- JOHNS HOPKINS HOSPITAL, THE600 NORTH WOLFE STREET
BALTIMORE, MD 21287
- JOHNS HOPKINS HOSPITAL, THE600 NORTH WOLFE STREET
Why is my NPI data (personal information) being displayed publicly?
If you have an active NPI profile, your profile is required to be disclosed according to the FOIA and eFOIA. HIPAA also requires covered providers to share their NPI with other providers, health plans, clearinghouses and any entity that may need it for billing purposes.
How do I correct or change the NPI data displayed here?
At any time, providers can make changes to their NPI profile at NPPES. Login to NPPES to make changes online or call (800) 465-3203 for assistance. Changes made at NPPES will be reflected on this web site within a few days.
Can I hide my NPI profile from the public?
Unfortunately, No. The NPPES discloses health care provider data under the Freedom of Information Act to the public, which means anyone may request such information directly from the National Plan & Provider Enumeration System.
See the complete CMS Data Dissemination Notice here.