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

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.

See every abbreviation used in this directory →

Practice location Address checks out

130 2nd Ave Boston IVF - The Waltham Ctr
Waltham, MA 02451
Phone: (781) 434-6500
Fax: (781) 434-6501
Show map & directions

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

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