Avner Hershlag, MD
NPI 1518027663 · Reproductive Endocrinology Physician · Commack, NY
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Avner Hershlag, MD is a Reproductive Endocrinology Physician provider in Commack, NY (NPI 1518027663).
Provider details
- NPI number
- 1518027663
- Entity type
- Individual
- Primary specialty
- Reproductive Endocrinology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 182102 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$23 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-11
- Last updated
- 2020-07-27
- Certified
- 2020-07-27
Frequently asked questions
- What is Avner Hershlag's NPI number?
- Avner Hershlag's National Provider Identifier (NPI) is 1518027663, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Avner Hershlag's specialty?
- Avner Hershlag is listed in the NPPES registry with a primary specialty of Reproductive Endocrinology Physician (Allopathic & Osteopathic Physicians).
- Where is Avner Hershlag located?
- Avner Hershlag's practice location on file with NPPES is 500 Commack Rd Unit 202, Commack, NY 11725-5022.
- What is Avner Hershlag's phone number?
- The practice phone number listed in the NPPES registry for Avner Hershlag is (516) 562-2229.
- Does Avner Hershlag accept Medicare?
- Avner Hershlag is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Avner Hershlag's NPI active?
- Yes — Avner Hershlag's NPI (1518027663) is active in the NPPES registry as of the last update on 2020-07-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.