DR. ALAN FISCH MD
NPI 1043239270
Psychiatry & Neurology - Addiction Medicine in Cambridge, MA
About Dr. Alan Fisch Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALAN FISCH MD (NPI 1043239270) is an individual addiction medicine provider in Cambridge, Massachusetts, licensed in Massachusetts (28176) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Tufts University School Of Medicine (1963).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Alan Fisch Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Alan Fisch reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Watertown, MA 02472
- Reassigned Medicare billing, Massachusetts enrollment
- 27 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02139 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CAMBRIDGE, MA 02139
CAMBRIDGE, MA 02139
CAMBRIDGE, MA 02139
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 Fisch's NPI number?
The NPI number for Alan Fisch is 1043239270. It was assigned to this individual provider in the NPPES registry on July 19, 2006.
Where is Alan Fisch located?
Alan Fisch practices at 872 Massachusetts Ave. Ste. 2-2, 2-7, Cambridge, MA 02139. The listed phone number is (617) 395-5806.
What is Alan Fisch's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Addiction Medicine, with taxonomy code 2084A0401X.
Is Alan Fisch enrolled in Medicare?
Yes. Alan Fisch is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Alan Fisch's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alan Fisch reassigns Medicare benefits to Square Medical Group LLC (Watertown, 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 Fisch's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Alan Fisch was last updated on March 3, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Dr. Alan Fisch, MD · NPI 1043239270
Addiction Medicine physician in Cambridge, Massachusetts. Individual provider, active in the CMS NPPES registry since July 19, 2006.
## Identity
- **NPI:** 1043239270 (Entity type: Individual)
- **Enumerated:** July 19, 2006
- **Primary specialty:** Psychiatry & Neurology - Addiction Medicine · taxonomy 2084A0401X
- **State license:** 28176 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 872 MASSACHUSETTS AVE., STE. 2-2, 2-7, Cambridge, MA 02139
- **Phone:** (617) 395-5806 · **Fax:** (617) 383-6404
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Square Medical Group LLC (NPI 1356515464, Watertown, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tufts University School Of Medicine, class of 1963
## Record status
- **NPPES last updated:** March 3, 2015
- **Other identifiers:** Medicare PIN 000187801
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Source: [NPI Profile](https://npiprofile.com/npi/1043239270) · Data from the CMS NPPES public registry.