Lewin, Fagen & Lown, M.D. P.C.
NPI 1528134426 · Internal Medicine Physician · Commack, NY
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lewin, Fagen & Lown, M.D. P.C. is a Internal Medicine Physician organization in Commack, NY (NPI 1528134426).
Provider details
- NPI number
- 1528134426
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Jonathan Lown, President(631) 343-7242
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Suppliers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2006-11-24
- Last updated
- 2020-04-13
- Certified
- 2020-04-13
Frequently asked questions
- What is Lewin, Fagen & Lown, M.D. P.C.'s NPI number?
- Lewin, Fagen & Lown, M.D. P.C.'s National Provider Identifier (NPI) is 1528134426, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Lewin, Fagen & Lown, M.D. P.C.?
- Lewin, Fagen & Lown, M.D. P.C. is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Lewin, Fagen & Lown, M.D. P.C. located?
- Lewin, Fagen & Lown, M.D. P.C.'s practice location on file with NPPES is 2171 Jericho Tpke Ste 100, Commack, NY 11725-2900.
- What is Lewin, Fagen & Lown, M.D. P.C.'s phone number?
- The practice phone number listed in the NPPES registry for Lewin, Fagen & Lown, M.D. P.C. is (631) 864-4499.
- Does Lewin, Fagen & Lown, M.D. P.C. accept Medicare?
- Lewin, Fagen & Lown, M.D. P.C. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Lewin, Fagen & Lown, M.D. P.C.?
- The authorized official listed on Lewin, Fagen & Lown, M.D. P.C.'s NPPES record is Jonathan Lown, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Lewin, Fagen & Lown, M.D. P.C.'s NPI active?
- Yes — Lewin, Fagen & Lown, M.D. P.C.'s NPI (1528134426) is active in the NPPES registry as of the last update on 2020-04-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.