Decision MakingGenetic CounselingGenetic Testing
Dr. Avner Hershlag, MD
NPI1518027663PAC ID2466534656
- Publications
- 20
- Industry payments
- $1,976
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 320 Montauk Hwy, West Islip, NY 11795
- Practice phone
- Call (631) 444-2731
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
University Associates in Obstetrics & Gynecology, University Faculty P
West Islip, New York
Find Dr. Hershlag's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Avner Hershlag is a reproductive endocrinology physician in West Islip, New York
Dr. Hershlag practices at University Associates in Obstetrics & Gynecology, University Faculty P in West Islip, New York.
Dr. Hershlag's NPI, 1518027663, was assigned on December 11, 2006. Dr. Hershlag holds New York license 182102.
NPI and contact details
- NPI
- 1518027663NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2466534656
- NPI enumeration date
- December 11, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (631) 444-2731
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 75
- Medical school graduation
- 1977
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Avner Hershlag practices at University Associates in Obstetrics & Gynecology, University Faculty P in West Islip, New York
Dr. Hershlag's primary practice is University Associates in Obstetrics & Gynecology, University Faculty P, at 320 Montauk Hwy, West Islip, NY 11795 in Suffolk County. The practice phone is (631) 444-2731.
- University Associates in Obstetrics & Gynecology, University Faculty P320 Montauk Hwy, West Islip, NY 11795 · Suffolk CountyPhone(631) 444-2731
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Avner Hershlag is affiliated with 2 sites of care and 1 medical group
Dr. Hershlag's primary practice is University Associates in Obstetrics & Gynecology, University Faculty P in West Islip, New York. The medical group on file is University Associates in Obstetrics & Gynecology. Dmand AI also links Dr. Hershlag to 1 more group practice or clinic, named with a free account.
University Associates in Obstetrics & Gynecology, University Faculty PPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Avner Hershlag's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hershlag practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University Associates in Obstetrics & Gynecology, University Faculty P | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Avner Hershlag is one of 174 reproductive endocrinology physicians in New York
Reproductive endocrinology is Dr. Hershlag's primary specialty in the NPI Registry, under taxonomy code 207VE0102X. Dr. Hershlag is licensed in New York.
Specialties and state licenses
- Reproductive endocrinology, New YorkPrimary
Reproductive endocrinology physicians near Dr. Hershlag
Counts of reproductive endocrinology physicians with a Dmand AI profile, by place and practice. Each opens the list.
174reproductive endocrinology physicians in New York
3reproductive endocrinology physicians in West Islip
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Avner Hershlag's patients have a median age of 36
Across all payers, Dmand AI patient panel data puts Dr. Hershlag's median patient age at 36, with 71% women.
Dr. Hershlag's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 36
Patient panel by sex, all payers
- Women71%
- Men26%
Source: Dmand AI Patient Panel Data
How Dr. Avner Hershlag takes part in Medicare
Dr. Hershlag accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Dr. Avner Hershlag has 20 publications on record
Dmand AI links 20 papers to Dr. Hershlag, published from 2010 to 2025. 2018 was the busiest year, with 5. The most frequent topics are Genetic Testing, Embryo, Mammalian and Embryonic Development. Dr. Hershlag has published most often in Fertil Steril. Dr. Hershlag's most frequent co-authors are Alexandra Rose Peyser, MD, Christine Marie Mullin, MD and Tomer Singer, MD.
Papers20
Years published2010 to 2025
Dr. Hershlag's papers by year, 2010 to 2025
Topics Dr. Hershlag writes about most
- Genetic Testing
- Embryo, Mammalian
- Embryonic Development
- Fertilization in Vitro
- Genetic Carrier Screening
- Genetic Counseling
- Genetic Predisposition to Disease
- Cattle
Dr. Hershlag's most frequent co-authors
- Alexandra Rose Peyser, MD7 shared papers
- Christine Marie Mullin, MD4 shared papers
- Tomer Singer, MD4 shared papers
Recent publications by Dr. Hershlag
J Assist Reprod Genet
DNA HelicasesGametogenesisGenes, Tumor Suppressor
See who Dr. Hershlag researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hershlag works with, so you can find a warm path to the right reproductive endocrinology physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Avner Hershlag received $1,976 in industry payments from 2017 to 2024
CMS Open Payments shows 24 general payments to Dr. Hershlag from 7 drug and device companies from 2017 to 2024. Consulting fees make up the largest share, 77% of the total. Takeda Pharmaceuticals U.S.A., Inc. paid the most, $1,520.
General payments to Dr. Hershlag by program year, 2017 to 2024
General payments to Dr. Hershlag by kind, 2017 to 2024
$2Kin total
- Consulting fees$1,52077%
- Food and beverage$45623%
Companies that paid Dr. Hershlag the most, 2017 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Avner Hershlag's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Avner Hershlag
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Avner Hershlag's NPI number?
Dr. Avner Hershlag's NPI number is 1518027663. It was assigned on December 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Avner Hershlag?
Dr. Avner Hershlag is a reproductive endocrinology physician in West Islip, New York. The primary specialty in the NPI Registry is Reproductive Endocrinology Physician (taxonomy code 207VE0102X).
Where does Dr. Avner Hershlag practice?
Dr. Hershlag practices at 320 Montauk Hwy, West Islip, NY 11795. Dr. Hershlag's primary practice is University Associates in Obstetrics & Gynecology, University Faculty P in West Islip, New York. Dmand AI also links Dr. Hershlag to 1 group practice or clinic.
What is Dr. Avner Hershlag's office phone number?
The practice phone on file for Dr. Hershlag is (631) 444-2731.
What is Dr. Avner Hershlag's medical license number?
Dr. Hershlag holds New York license 182102.
What medical group is Dr. Avner Hershlag part of?
Dr. Hershlag is linked to University Associates in Obstetrics & Gynecology.
Does Dr. Avner Hershlag accept Medicare?
Yes. CMS lists Dr. Hershlag as accepting Medicare assignment.
Has Dr. Avner Hershlag received payments from drug or device companies?
CMS Open Payments shows $1,976 in general payments to Dr. Hershlag from 7 companies from 2017 to 2024. The largest total came from Takeda Pharmaceuticals U.S.A., Inc.
How long has Dr. Avner Hershlag been practicing?
Dr. Hershlag graduated from medical school in 1977, 49 years ago.
Does Dr. Avner Hershlag do research?
Dmand AI links 20 publications to Dr. Hershlag, published from 2010 to 2025.
Who does Dr. Avner Hershlag publish with?
Dr. Hershlag's most frequent co-authors are Alexandra Rose Peyser, MD (7 shared papers), Christine Marie Mullin, MD (4 shared papers) and Tomer Singer, MD (4 shared papers).
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