What is John Lozowski's NPI number?

John Lozowski's National Provider Identifier (NPI) is 1851910483, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is John Lozowski's specialty?

John Lozowski is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).

Where is John Lozowski located?

John Lozowski's practice location on file with NPPES is 1 Medical Center Blvd, Chester, PA 19013-3902.

What is John Lozowski's phone number?

The practice phone number listed in the NPPES registry for John Lozowski is (215) 495-9099.

Does John Lozowski accept Medicare?

John Lozowski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is John Lozowski's NPI active?

Yes — John Lozowski's NPI (1851910483) is active in the NPPES registry as of the last update on 2025-08-06.

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John Lozowski, DO

NPI 1851910483 · Diagnostic Radiology Physician · Chester, PA

Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)

John Lozowski, DO is a Diagnostic Radiology Physician provider in Chester, PA (NPI 1851910483).

Provider details

NPI number: 1851910483
Entity type: Individual
Primary specialty: Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
Credential: DO
Sex: Male
Sole proprietor: No

Specialties & taxonomies

Diagnostic Radiology PhysicianPrimary2085R0202XLicense 0102209195 (VA)
Allopathic & Osteopathic Physicians
Student in an Organized Health Care Education/Training Program390200000X
Student, Health Care

Profile Score

Established profile(67/100 index)

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

Registry tenure38% of score
6 yrs in NPPES registry
Profile completeness38% of score
83% of core fields populated
Practice footprint23% of score
8 documented practice locations

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

1 Medical Center Blvd

Chester, PA 19013-3902

Phone: (215) 495-9099

Street-level locationGet directions

More PA providers

Mailing address

11 Brook Ln

Chalfont, PA 18914-1309

Additional practice locations (7)

11958 W Broad St
Henrico, VA 23233-1007
Phone: (804) 560-8906
Fax: (804) 237-6618
9000 Stony Point Pkwy
Richmond, VA 23235-1900
Phone: (804) 560-8906
Fax: (804) 237-6618
1213 E Clay St
Richmond, VA 23298-5071
Phone: (804) 828-6600
Fax: (804) 828-6129
1001 E Leigh St
Richmond, VA 23298-5004
Phone: (804) 628-7245
Fax: (804) 828-6129
1250 E Marshall St
Richmond, VA 23298-5023
Phone: (804) 828-6600
Fax: (804) 828-6129
300 Mt Clement Park Ste A2
Tappahannock, VA 22560-5098
Phone: (804) 828-6600
Fax: (804) 828-6129
618 Hospital Rd
Tappahannock, VA 22560-5000
Phone: (804) 828-6600
Fax: (804) 828-6129

Enumerated: 2020-04-14
Last updated: 2025-08-06
Certified: 2025-08-06

Frequently asked questions

What is John Lozowski's NPI number?: John Lozowski's National Provider Identifier (NPI) is 1851910483, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is John Lozowski's specialty?: John Lozowski is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
Where is John Lozowski located?: John Lozowski's practice location on file with NPPES is 1 Medical Center Blvd, Chester, PA 19013-3902.
What is John Lozowski's phone number?: The practice phone number listed in the NPPES registry for John Lozowski is (215) 495-9099.
Does John Lozowski accept Medicare?: John Lozowski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is John Lozowski's NPI active?: Yes — John Lozowski's NPI (1851910483) is active in the NPPES registry as of the last update on 2025-08-06.

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