What is Leo Chylack's NPI number?

Leo Chylack's National Provider Identifier (NPI) is 1619030707, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Leo Chylack's specialty?

Leo Chylack is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).

Where is Leo Chylack located?

Leo Chylack's practice location on file with NPPES is 221 Longwood Ave, Boston, MA 02115-5804.

What is Leo Chylack's phone number?

The practice phone number listed in the NPPES registry for Leo Chylack is (617) 732-7355.

Is Leo Chylack's NPI active?

Yes — Leo Chylack's NPI (1619030707) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Leo Chylack, M.D.

NPI 1619030707 · Ophthalmology Physician · Boston, MA

Leo Chylack, M.D. is a Ophthalmology Physician provider in Boston, MA (NPI 1619030707).

Provider details

NPI number: 1619030707
Entity type: Individual
Primary specialty: Ophthalmology PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No
License: 33138 (MA)

Specialties & taxonomies

Ophthalmology PhysicianPrimary207W00000XLicense 33138 (MA)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(90/100 index)

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

Registry tenure38% of score
19 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

221 Longwood Ave

Rm 323

Boston, MA 02115-5804

Phone: (617) 732-7355

Approximate (ZIP-level) locationGet directions

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Mailing address