Dr. Mark Donald Hornstein, MD
- Part D claims, 2024
- 13
- Publications
- 154
- Clinical trials
- 1
- Hospital affiliations
- 2
- Medical groups
- 3
- Practice address
- 75 Francis Street, Boston, MA 02115
- Practice phone
- Call (617) 732-5500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hornstein'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. Mark Donald Hornstein is a reproductive endocrinology physician in Boston, Massachusetts
Dr. Hornstein practices at Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Hornstein's NPI, 1720038276, was assigned on May 12, 2006. Dr. Hornstein graduated from University Of Cincinnati College Of Medicine in 1982. Dr. Hornstein holds Massachusetts license 55051.
- NPI
- 1720038276NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9133175458
- NPI enumeration date
- May 12, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 732-5500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Donald Hornstein practices at Brigham and Women's Hospital in Boston, Massachusetts
Dr. Hornstein's primary practice is Brigham and Women's Hospital, at 75 Francis Street, Boston, MA 02115 in Suffolk County. The practice phone is (617) 732-5500.
- Brigham and Women's Hospital75 Francis Street, Boston, MA 02115 · Suffolk CountyPhone(617) 732-5500
Source: Dmand AI Affiliation Data
Dr. Mark Donald Hornstein is affiliated with 3 sites of care and 3 medical groups
Dr. Hornstein's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Hornstein is also affiliated with Massachusetts General Hospital. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Hornstein to 2 more medical groups and 1 hospital outpatient department, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark Donald Hornstein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hornstein practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Brigham and Women's Hospital | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Mass General Brigham and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mark Donald Hornstein is one of 59 reproductive endocrinology physicians in Massachusetts
Reproductive endocrinology is Dr. Hornstein's primary specialty in the NPI Registry, under taxonomy code 207VE0102X. Dr. Hornstein is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology. Dr. Hornstein is licensed in Massachusetts.
Specialties and state licenses
- Reproductive endocrinology, MassachusettsPrimary
Reproductive endocrinology physicians near Dr. Hornstein
Counts of reproductive endocrinology physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark Donald Hornstein's patients have a median age of 38
Across all payers, Dmand AI patient panel data puts Dr. Hornstein's median patient age at 38, with 77% women.
Dr. Hornstein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 38
Patient panel by sex, all payers
- Women77%
- Men22%
Source: Dmand AI Patient Panel Data
Dr. Mark Donald Hornstein wrote 13 Medicare Part D claims in 2024
In 2024, Dr. Hornstein wrote 13 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $486 in total drug cost. In 2021, CMS named 11 claims across 1 drug.
Dr. Hornstein's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 112022: 1536%
Drugs named by CMS: 1 in 2022, 1 in 2021.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Mark Donald Hornstein takes part in Medicare
Dr. Hornstein 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)
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Dr. Mark Donald Hornstein has 154 publications on record
Dmand AI links 154 papers to Dr. Hornstein, published from 2005 to 2024. 2013 was the busiest year, with 10. The most frequent topics are Fertilization in Vitro, Endometriosis and Pregnancy Outcome. Dr. Hornstein has published most often in Fertil Steril. Dr. Hornstein's most frequent co-authors are Elizabeth Sarah Ginsburg, MD, Mitchell S. Rein, MD and Marc R. Laufer, MD.
Dr. Hornstein's papers by year, 2013 to 2024
Topics Dr. Hornstein writes about most
- Fertilization in Vitro
- Endometriosis
- Pregnancy Outcome
- Embryo Transfer
- Pregnancy Rate
- Infertility
- Estradiol
- Reproductive Techniques, Assisted
Dr. Hornstein's most frequent co-authors
- Elizabeth Sarah Ginsburg, MD14 shared papers
- Mitchell S. Rein, MD11 shared papers
- Marc R. Laufer, MD7 shared papers
Recent publications by Dr. Hornstein
J Minim Invasive Gynecol
J Assist Reprod Genet
J Assist Reprod Genet
J Assist Reprod Genet
See who Dr. Hornstein researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hornstein 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. Mark Donald Hornstein has worked on 1 clinical trial
Dmand AI links Dr. Hornstein to 1 clinical trial. Conditions studied include Pelvic Pain and Endometriosis.
Conditions in Dr. Hornstein's trials
- Pelvic Pain
- Endometriosis
Recent clinical trials with Dr. Hornstein
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Mark Donald Hornstein has 4 awards and honors on record
Dmand AI lists 4 awards for Dr. Hornstein, most recently America's Top Doctors in 2014.
Awards and honors for Dr. Hornstein
- 2014
- America's Top Doctors
- 2013
- Boston Magazine
- Undated
- ACOG Fellow
- Super Doc
Source: Dmand AI Professional Profile Data
Dr. Mark Donald Hornstein graduated from University Of Cincinnati College Of Medicine
Dr. Hornstein graduated from University Of Cincinnati College Of Medicine in 1982. Dr. Hornstein is a member of American College of Obstetricians and Gynecologists.
- Medical school
- Board certified in obstetrics & gynecology
- Board certified in reproductive endocrinology/infertility
Source: Dmand AI Professional Profile Data
Dr. Mark Donald Hornstein accepts plans from 16 insurance carriers
Dr. Hornstein is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Aspirus Health Plan
- Molina
- +8 more carriersWith a free account
Plan types Dr. Hornstein accepts, by number of carriers
- Medicare9
- PPO9
- HMO8
- POS5
- EPO4
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. Mark Donald Hornstein'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| 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 |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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. Mark Donald Hornstein
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. Mark Donald Hornstein's NPI number?
Dr. Mark Donald Hornstein's NPI number is 1720038276. It was assigned on May 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Donald Hornstein?
Dr. Mark Donald Hornstein is a reproductive endocrinology physician in Boston, Massachusetts. The primary specialty in the NPI Registry is Reproductive Endocrinology Physician (taxonomy code 207VE0102X).
Where does Dr. Mark Donald Hornstein practice?
Dr. Hornstein practices at 75 Francis Street, Boston, MA 02115. Dr. Hornstein's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Hornstein to 2 medical groups and 1 hospital outpatient department.
What is Dr. Mark Donald Hornstein's office phone number?
The practice phone on file for Dr. Hornstein is (617) 732-5500.
What is Dr. Mark Donald Hornstein's medical license number?
Dr. Hornstein holds Massachusetts license 55051.
Which hospitals is Dr. Mark Donald Hornstein affiliated with?
Dr. Hornstein practices at Brigham and Women's Hospital in Boston, Massachusetts. Dr. Hornstein is also affiliated with Massachusetts General Hospital.
What medical group is Dr. Mark Donald Hornstein part of?
Dr. Hornstein is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Dr. Hornstein to 2 more medical groups.
Does Dr. Mark Donald Hornstein accept Medicare?
Yes. CMS lists Dr. Hornstein as accepting Medicare assignment.
Is Dr. Mark Donald Hornstein board certified?
Yes. Dr. Hornstein is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology.
Where did Dr. Mark Donald Hornstein go to medical school?
Dr. Hornstein graduated from University Of Cincinnati College Of Medicine in 1982.
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What drugs does Dr. Mark Donald Hornstein prescribe most?
In 2022 Medicare Part D data, Dr. Hornstein's most prescribed drugs by claims were Spironolactone.
How long has Dr. Mark Donald Hornstein been practicing?
Dr. Hornstein graduated from medical school in 1982, 44 years ago.
Does Dr. Mark Donald Hornstein do research?
Dmand AI links 154 publications to Dr. Hornstein, published from 2005 to 2024. Dr. Hornstein has worked on 1 clinical trial.
Who does Dr. Mark Donald Hornstein publish with?
Dr. Hornstein's most frequent co-authors are Elizabeth Sarah Ginsburg, MD (14 shared papers), Mitchell S. Rein, MD (11 shared papers) and Marc R. Laufer, MD (7 shared papers).
What insurance does Dr. Mark Donald Hornstein accept?
Dr. Hornstein is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
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