Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Alan Stewart Penzias, MD

Individual provider Reproductive Endocrinology Physician · NPI 1497701866

Dr. Alan Stewart Penzias, MD is a Reproductive Endocrinology Physician in Waltham, Massachusetts. Works from 3 locations. Licensed in Massachusetts, Maine, New York and Rhode Island.

Licensed in
MA, ME, NY, RI
In the registry since
2006
Specialties on file
7
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

130 2nd Ave Boston IVF - The Waltham Ctr
Waltham, MA 02451
Phone: (781) 434-6500
Fax: (781) 434-6501
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 5792 Widewaters Pkwy, De Witt, NY 13214-1847 — (315) 434-3050
  • 725 Irving Ave Ste 600, Syracuse, NY 13210-1688 — (518) 815-2241

Specialties & licences

Reproductive Endocrinology Physician (primary) Taxonomy 207VE0102X · Licence 58565 (MA)
Reproductive Endocrinology Physician Taxonomy 207VE0102X · Licence 272983 (NY)
Gynecology Physician Taxonomy 207VG0400X · Licence 58565 (MA)
Gynecology Physician Taxonomy 207VG0400X · Licence 015833 (ME)
Gynecology Physician Taxonomy 207VG0400X · Licence MD11056 (RI)
Reproductive Endocrinology Physician Taxonomy 207VE0102X · Licence 015833 (ME)
Reproductive Endocrinology Physician Taxonomy 207VE0102X · Licence MD11056 (RI)

Record details

NPI number1497701866
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 26, 2006
Last updated in NPPESMay 22, 2018

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $58 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

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