DR. GARY A LETTS M.D.
NPI 1124235437
Pathology - Anatomic Pathology & Clinical Pathology in Norwalk, CT
About Dr. Gary A Letts M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GARY A LETTS M.D. (NPI 1124235437) is an individual anatomic pathology & clinical pathology provider in Norwalk, Connecticut, licensed in Connecticut (043041) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (1996).
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. Gary A Letts M.d. 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
6Medicare enrollment records show Gary Letts reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Norwalk, CT 06851
- Reassigned Medicare billing, Connecticut enrollment
Stamford, CT 06903
- Reassigned Medicare billing, Connecticut enrollment
- 5 clinicians in this Medicare group
Greenwich, CT 06830
- Reassigned Medicare billing, Connecticut enrollment
- 8 clinicians in this Medicare group
New Hyde Park, NY 11040
- Reassigned Medicare billing, New York enrollment
- 39 clinicians in this Medicare group
Poughkeepsie, NY 12603
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Premier Medical Group Of The Hudson Valley PC
- 169 clinicians in this Medicare group
Smyrna, GA 30080
- Reassigned Medicare billing, New York enrollment
- 4 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06851 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NORWALK, CT 06851
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 Gary Letts's NPI number?
The NPI number for Gary Letts is 1124235437. It was assigned to this individual provider in the NPPES registry on May 17, 2007.
Where is Gary Letts located?
Gary Letts practices at 148 East Ave Ste 2D, Norwalk, CT 06851. The listed phone number is (203) 832-3737.
What is Gary Letts's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.
Is Gary Letts enrolled in Medicare?
Yes. Gary Letts 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 Gary Letts's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gary Letts reassigns Medicare benefits to 6 organizations: Gary A. Letts, M.D. LLC (Norwalk, CT), Long Ridge Dermatology,llc (Stamford, CT), Greenwich Pathology Associates, LLC (Greenwich, CT), Advanced Dermatology PC (New Hyde Park, NY), Premier Medical Group Of The Hudson Valley P.C. (Poughkeepsie, NY) and 1 more organization, listed in the Medicare section above. 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 Gary Letts'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 Gary Letts was last updated on October 13, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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. Gary A Letts, M.D. · NPI 1124235437
Anatomic Pathology & Clinical Pathology physician in Norwalk, Connecticut. Individual provider, active in the CMS NPPES registry since May 17, 2007.
## Identity
- **NPI:** 1124235437 (Entity type: Individual)
- **Enumerated:** May 17, 2007
- **Primary specialty:** Pathology - Anatomic Pathology & Clinical Pathology · taxonomy 207ZP0102X
- **State license:** 043041 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 148 EAST AVE, STE 2D, Norwalk, CT 06851-5726
- **Phone:** (203) 832-3737 · **Fax:** (203) 348-7547
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Gary A. Letts, M.D. LLC (NPI 1568691079, Norwalk, CT); Long Ridge Dermatology,llc (NPI 1326100553, Stamford, CT); Greenwich Pathology Associates, LLC (NPI 1699968974, Greenwich, CT); Advanced Dermatology PC (NPI 1134201460, New Hyde Park, NY); Premier Medical Group Of The Hudson Valley P.C. (NPI 1255437166, Poughkeepsie, NY); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Geffen School Of Medicine, class of 1996
## Record status
- **NPPES last updated:** October 13, 2017
- **Other identifiers:** Medicare PIN A400119805 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1124235437) · Data from the CMS NPPES public registry.