DR. KEITH LIPSITZ MD
NPI 1114915857
Anesthesiology in Milford, CT
About Dr. Keith Lipsitz Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KEITH LIPSITZ MD (NPI 1114915857) is an individual anesthesiology provider in Milford, Connecticut, licensed in Connecticut (030827) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS and is a graduate of Other (1985).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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. Keith Lipsitz 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 Reassignments
3Medicare enrollment records show Keith Lipsitz reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New Haven, CT 06519
- Reassigned Medicare billing, Connecticut enrollment
- 3,728 clinicians in this Medicare group
Fairfield, CT 06824
- Reassigned Medicare billing, Connecticut enrollment
- 41 clinicians in this Medicare group
Guilford, CT 06437
- Reassigned Medicare billing, Connecticut enrollment
- 19 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 4
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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Keith Lipsitz's NPI number?
The NPI number for Keith Lipsitz is 1114915857. It was assigned to this individual provider in the NPPES registry on October 6, 2005.
Where is Keith Lipsitz located?
Keith Lipsitz practices at 831 Boston Post Rd Suite 203, Milford, CT 06460. The listed phone number is (203) 783-1831.
What is Keith Lipsitz's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Keith Lipsitz enrolled in Medicare?
Yes. Keith Lipsitz 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 organizations bill Medicare for Keith Lipsitz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Keith Lipsitz reassigns Medicare benefits to 3 organizations: Yale University (New Haven, CT), Greater Connecticut Anesthesia Associates, LLC (Fairfield, CT) and New England Anesthesia Associates, LLC (Guilford, CT). Each 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 Keith Lipsitz'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 Keith Lipsitz was last updated on October 3, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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. Keith Lipsitz, MD · NPI 1114915857
Anesthesiology physician in Milford, Connecticut. Individual provider, active in the CMS NPPES registry since October 6, 2005.
## Identity
- **NPI:** 1114915857 (Entity type: Individual)
- **Enumerated:** October 6, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 030827 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 831 BOSTON POST RD, SUITE 203, Milford, CT 06460-3536
- **Phone:** (203) 783-1831
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Yale University (NPI 1124148887, New Haven, CT); Greater Connecticut Anesthesia Associates, LLC (NPI 1730837576, Fairfield, CT); New England Anesthesia Associates, LLC (NPI 1891388146, Guilford, CT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1985
## Record status
- **NPPES last updated:** October 3, 2013
- **Other identifiers:** Medicare UPIN E66282 (CT); Medicare ID-Type Unspecified 050000861 (CT); Medicaid 001308271 (CT)
---
Source: [NPI Profile](https://npiprofile.com/npi/1114915857) · Data from the CMS NPPES public registry.