Individual provider Active NPI

Maximilian Stahl, M.D.

  • Hematology & Oncology Physician
  • New Haven, CT
National Provider Identifier
1043621477
Registry record updated Feb 12, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology & Oncology PhysicianTaxonomy code 207RH0003X
License
56265 Issued in CT
Practice address
333 Cedar St
New Haven, CT 06510-3206
Phone
(203) 785-4095
NPI assigned
May 20, 2014
Last updated
Feb 12, 2025By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Feb 12, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Medical Oncology Physician 207RX0202X 287928 MA
Hematology & Oncology Physician 207RH0003X 56265 CT Primary

Addresses

Primary practice location

333 Cedar St
New Haven, CT 06510-3206

Mailing address

450 Brookline Ave
Boston, MA 02215-5450
Phone (617) 732-6089

Other practice location 1

450 Brookline Ave
Boston, MA 02215-5450
Phone (617) 732-6089

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CT, MA3 enrollments
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 3

Enrollment IDStateProvider typePAC IDDetails
I20170522002004 CT Practitioner - Internal Medicine 6901117167 Reassigns benefits to 1 organization
I20210920002293 MA Practitioner - Medical Oncology 6901117167
I20250423002502 CT Practitioner - Medical OncologyPractitioner - Hematology 6901117167 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Medical OncologyAlso: Hematology
Education
Other, 2013
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Yale UniversityGroup PAC ID 9436061736, 2,632 clinicians

Practice addresses (Care Compare)

35 Park St
New Haven, CT 06519-1110
Phone (203) 785-4191

789 Howard Ave
New Haven, CT 06519-1304
Phone (203) 688-2471

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
84.06 of 100Reported as group
Quality
65.04
Promoting interoperability
100
Improvement activities
40
Cost
69.14

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
287928MAMDMedical Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Yale University CurrentSince Apr 3, 2025 Accepting new patients
Yale University Internal Medicine CurrentSince Jul 1, 2017 Accepting new patients
Yale University CurrentSince Jul 1, 2017 Accepting new patients
Dana-Farber Cancer Institute, Inc. CurrentSince Aug 1, 2021 Accepting new patients

Locations

300 George St
Fl 6
New Haven, CT 06511
Phone (203) 785-6610

333 Cedar St
New Haven, CT 06510
Phone (203) 432-4771

35 Park St
New Haven, CT 06519
Phone (203) 200-2100

50 Division St
New Haven, CT 06511
Phone (203) 785-2140

800 Howard Ave
New Haven, CT 06519
Phone (203) 785-2140

20 York St
North Haven, CT 06510
Phone (203) 688-2433

789 Howard Ave
North Haven, CT 06519
Phone (203) 688-2471

450 Brookline Ave
Boston, MA 02215
Phone (508) 478-2061

Interoperability endpoints

  • Direct secure messaging: mstahl157289@direct.ynhh.org

Organizations & group practices 4

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 3

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1400544000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1739318400000",
    "number": "1043621477",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "450 BROOKLINE AVE",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "022155450",
            "telephone_number": "617-732-6089",
            "fax_number": "617-732-5706"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "333 CEDAR ST",
            "city": "NEW HAVEN",
            "state": "CT",
            "postal_code": "065103206",
            "telephone_number": "203-785-4095"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "450 Brookline Ave",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "022155450",
            "country_code": "US",
            "telephone_number": "617-732-6089",
            "fax_number": "617-732-5706",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "STAHL",
        "first_name": "MAXIMILIAN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2014-05-20",
        "last_updated": "2025-02-12",
        "certification_date": "2025-02-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "MA",
            "license": "287928",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "CT",
            "license": "56265",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in New Haven, CT

Sources for this page

Verify at the official NPI Registry.