John W Graef, MD
Pediatrics, Medical Toxicology in Boston, Massachusetts
1982680575- Practice location
- 333 Longwood Ave, Boston, MA 02115-5711
- Phone
- 617-355-8263
- Fax
- 617-277-8934
- Last updated
- July 13, 2026
John W Graef is a Pediatrics, Medical Toxicology based in Boston, MA. John W Graef practices in Boston, MA and has the professional credentials of MD. The NPI Number for John W Graef is 1982680575 and holds a License No. 33948 (MA). The current practice location address for John W Graef is 333 Longwood Ave, Boston, MA 02115-5711 and can be reached out via phone at 617-355-8263 and via fax at 617-277-8934.
Provider Profile Details
- NPI Number
- 1982680575
- Provider Name
- John W Graef
- Credential
- MD
- Provider Entity Type
- Individual
- Gender
- Male
- Address
- 333 Longwood Ave, Boston, MA 02115-5711
- Phone Number
- 617-355-8263
- Fax Number
- 617-277-8934
- Primary Taxonomy
- Pediatrics, Medical Toxicology · 2080T0002X
- Sole Proprietor
- No
- Provider Enumeration Date
- December 16, 2005
- Last Update Date
- July 13, 2026
- NPI Status
- Active
Provider Business Practice Location Address Details
- Address
- 333 Longwood Ave
Boston, MA 02115-5711 - City
- Boston
- State
- Massachusetts
- Zip
- 02115-5711
- Phone Number
- 617-355-8263
- Fax Number
- 617-277-8934
Provider Business Mailing Address Details
- Address
- 147 Milk Street
Provider Enrollment - 9TH Floor
Boston, MA 02109-4862 - City
- Boston
- State
- MA
- Zip
- 02109-4862
- Phone Number
- 617-559-8053
- Fax Number
- 617-421-3487
License Information
- License Number (1)
- 33948
- License State (1)
- MA
- Taxonomy (1)
- Pediatrics · 208000000X
- License Number (2)
- 33948
- License State (2)
- MA
- Taxonomy (2)
- Pediatrics, Medical Toxicology · 2080T0002X · Primary
- License Number (3)
- 33948
- License State (3)
- MA
- Taxonomy (3)
- Hospitalist · 208M00000X
Legacy Identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| No legacy identifiers (Medicaid, Medicare or plan IDs) are on file for this provider. | |||
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Frequently Asked Questions
What is the NPI number of John W Graef, MD?
The NPI number of John W Graef, MD is 1982680575. It was assigned on December 16, 2005 and is currently active in the NPPES registry.
What is the specialty of John W Graef, MD?
John W Graef, MD is registered under the primary taxonomy Pediatrics, Medical Toxicology (code 2080T0002X), licensed in MA under license number 33948.
Where does John W Graef, MD practice?
The practice location is 333 Longwood Ave, Boston, MA 02115-5711. The office can be reached at 617-355-8263 (phone) or 617-277-8934 (fax).
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). It is used in HIPAA standard transactions.
How do I verify this NPI record?
This record is sourced from the public NPPES NPI Registry maintained by CMS. You can confirm it by searching NPI 1982680575 directly on the NPPES registry website.