What is Aaron Alexander-Bloch's NPI number?

Aaron Alexander-Bloch's National Provider Identifier (NPI) is 1023405180, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Aaron Alexander-Bloch's specialty?

Aaron Alexander-Bloch is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).

Where is Aaron Alexander-Bloch located?

Aaron Alexander-Bloch's practice location on file with NPPES is 3400 Spruce Street, Philadelphia, PA 19134-4222.

What is Aaron Alexander-Bloch's phone number?

The practice phone number listed in the NPPES registry for Aaron Alexander-Bloch is (215) 662-2826.

Is Aaron Alexander-Bloch's NPI active?

Yes — Aaron Alexander-Bloch's NPI (1023405180) is active in the NPPES registry as of the last update on 2025-11-06.

IndividualActive

Aaron Alexander-Bloch, M.D., PH.D.

NPI 1023405180 · Psychiatry Physician · Philadelphia, PA

Aaron Alexander-Bloch, M.D., PH.D. is a Psychiatry Physician provider in Philadelphia, PA (NPI 1023405180).

Provider details

NPI number: 1023405180
Entity type: Individual
Primary specialty: Psychiatry PhysicianAllopathic & Osteopathic Physicians
Credential: M.D., PH.D.
Sex: Male
Sole proprietor: Yes
License: MD469148 (PA)

Specialties & taxonomies

Psychiatry PhysicianPrimary2084P0800XLicense MD469148 (PA)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(74/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
11 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

3400 Spruce Street

Gates Building 10th Floor

Philadelphia, PA 19134-4222

Phone: (215) 662-2826

Fax: (215) 662-2434

Street-level locationGet directions

More PA providers

Mailing address

3400 Spruce St

Philadelphia, PA 19104-4238

Enumerated: 2015-04-16
Last updated: 2025-11-06
Certified: 2025-11-06

Frequently asked questions

What is Aaron Alexander-Bloch's NPI number?: Aaron Alexander-Bloch's National Provider Identifier (NPI) is 1023405180, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Aaron Alexander-Bloch's specialty?: Aaron Alexander-Bloch is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
Where is Aaron Alexander-Bloch located?: Aaron Alexander-Bloch's practice location on file with NPPES is 3400 Spruce Street, Philadelphia, PA 19134-4222.
What is Aaron Alexander-Bloch's phone number?: The practice phone number listed in the NPPES registry for Aaron Alexander-Bloch is (215) 662-2826.
Is Aaron Alexander-Bloch's NPI active?: Yes — Aaron Alexander-Bloch's NPI (1023405180) is active in the NPPES registry as of the last update on 2025-11-06.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.