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DR. ALAN STEWART PENZIAS M.D.
NPI 1497701866
Obstetrics & Gynecology - Reproductive Endocrinology in Waltham, MA

Active since May 26, 2006PECOS Enrolled
130 2ND AVE, BOSTON IVF - THE WALTHAM CENTER, WALTHAM, MA 02451(781) 434-6500(781) 434-6501 Get Directions Write a Review

NPPES record last updated: May 22, 2018. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Alan Stewart Penzias M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ALAN STEWART PENZIAS M.D. (NPI 1497701866) is an individual reproductive endocrinology provider in Waltham, Massachusetts, licensed in Massachusetts (58565) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1497701866
Entity TypeIndividualMale
Primary Taxonomy207VE0102X
Provider Legal NameDR. ALAN STEWART PENZIASCredential: M.D.
Location Address130 2ND AVE, BOSTON IVF - THE WALTHAM CENTERWaltham, MA 02451
Mailing Address130 2nd Ave, Boston Ivf - The Waltham CenterWaltham, MA 02451-1100 · (781) 434-6500 · Fax (781) 434-6501
Phone(781) 434-6500
Fax(781) 434-6501
Sole ProprietorNo
Enumeration DateMay 26, 2006
Last NPPES UpdateMay 22, 2018
✔ NPI 1497701866 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & Gynecology · Reproductive EndocrinologyAllopathic & Osteopathic Physicians
Taxonomy Code207VE0102X
Licenses✔ Licensed in MA · 58565✔ Licensed in NY · 272983✔ Licensed in ME · 015833✔ Licensed in RI · MD11056
Definition
An obstetrician/gynecologist who is capable of managing complex problems relating to reproductive endocrinology and infertility.
Also ListedObstetrics & Gynecology · GynecologyTaxonomy 207VG0400X · License 58565 (MA), 015833 (ME), MD11056 (RI)
130 2ND AVE, Waltham, MA 02451
Open in Google Maps ↗

Secondary Practice Locations 2

Location 1725 Irving Ave Ste 600Syracuse, NY 13210-1688 · Phone (518) 815-2241
Location 25792 Widewaters PkwyDE Witt, NY 13214-1847 · Phone (315) 434-3050

Other Identifiers 1

Medicaid3095011MA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Cigna Healthcare, Taro Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Alan Stewart Penzias M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Alan Penzias reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc
8.9 mi
Obstetrics & Gynecology
330 BROOKLINE AVE
Boston, MA 02215
  • Reassigned Medicare billing, Massachusetts enrollment
  • 161 clinicians in this Medicare group
NPI 1518908136 (617) 632-7441

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02451 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ANAESTHESIA ASSOCIATES OF MASSACHUSETTS, PC
Anesthesiology
130 2ND AVE
WALTHAM, MA 02451
Middlesex County (781) 434-6400
BOSTON IVF, INC.
Obstetrics & Gynecology
130 2ND AVE, BOSTON IVF, INC.
WALTHAM, MA 02451
Middlesex County (781) 434-6500
ELIZABETH SUSAN BLUMBERG PSY.D.
Counselor (Mental Health)
130 2ND AVE, BOSTON IVF - DOMAR CENTER FOR MIND/BODY HEALTH
WALTHAM, MA 02451
Middlesex County (781) 434-6578
DR. MERLE JAY BERGER M.D.
Obstetrics & Gynecology (Reproductive Endocrinology)
130 2ND AVE, BOSTON IVF - THE WALTHAM CENTER
WALTHAM, MA 02451
Middlesex County (781) 434-6500
BOSTON IVF, INC.
Obstetrics & Gynecology (Reproductive Endocrinology)
130 2ND AVE, BOSTON IVF, INC.
WALTHAM, MA 02451
Middlesex County (781) 434-6500
DR. TARA MCKEE COUSINEAU PH.D.
Psychologist
130 2ND AVE, BOSTON IVF - DOMAR CENTER
WALTHAM, MA 02451
Middlesex County (781) 434-6578
BOSTON IVF, INC.
Clinical Medical Laboratory
130 2ND AVE, BOSTON IVF, INC. - LAB
WALTHAM, MA 02451
Middlesex County (781) 434-6400
ALICE DIANE DOMAR PH.D.
Psychologist (Cognitive & Behavioral)
130 2ND AVE, BOSTON IVF - DOMAR CENTER
WALTHAM, MA 02451
Middlesex County (781) 434-6578

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alan Penzias's NPI number?

The NPI number for Alan Penzias is 1497701866. It was assigned to this individual provider in the NPPES registry on May 26, 2006.

Where is Alan Penzias located?

Alan Penzias practices at 130 2nd Ave Boston Ivf - The Waltham Center, Waltham, MA 02451. The listed phone number is (781) 434-6500.

What is Alan Penzias's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Reproductive Endocrinology, with taxonomy code 207VE0102X.

Is Alan Penzias enrolled in Medicare?

Yes. Alan Penzias is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Alan Penzias's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alan Penzias reassigns Medicare benefits to Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Alan Penzias's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alan Penzias accept?

Health plans from Anthem Blue Cross and Blue Shield, Cigna Healthcare, Taro Health and UnitedHealthcare list Alan Penzias as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Alan Penzias was last updated on May 22, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.