DR. LAWRENCE H. HENNESSY M.D.
NPI 1053331439
Anesthesiology in Middletown, CT
About Dr. Lawrence H. Hennessy M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LAWRENCE H. HENNESSY M.D. (NPI 1053331439) is an individual anesthesiology provider in Middletown, Connecticut, licensed in Connecticut (029968) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1985).
NPPES Registry Identity
Specialties & Licenses
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. Lawrence H. Hennessy 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 Reassignment
Medicare enrollment records show Lawrence Hennessy reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Middletown, CT 06457
- Reassigned Medicare billing, Connecticut enrollment
- 88 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 3
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.
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.
MIDDLETOWN, CT 06457
MIDDLETOWN, CT 06457
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 Lawrence Hennessy's NPI number?
The NPI number for Lawrence Hennessy is 1053331439. It was assigned to this individual provider in the NPPES registry on July 20, 2006.
Where is Lawrence Hennessy located?
Lawrence Hennessy practices at 80 S Main St, Middletown, CT 06457. The listed phone number is (860) 347-0720.
What is Lawrence Hennessy's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Lawrence Hennessy enrolled in Medicare?
Yes. Lawrence Hennessy 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 Lawrence Hennessy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lawrence Hennessy reassigns Medicare benefits to Anesthesiologists Of Middletown, P.C. (Middletown, CT). 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 Lawrence Hennessy'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 Lawrence Hennessy was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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. Lawrence H. Hennessy, M.D. · NPI 1053331439
Anesthesiology physician in Middletown, Connecticut. Individual provider, active in the CMS NPPES registry since July 20, 2006.
## Identity
- **NPI:** 1053331439 (Entity type: Individual)
- **Enumerated:** July 20, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 029968 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 80 S MAIN ST, Middletown, CT 06457-3648
- **Phone:** (860) 347-0720 · **Fax:** (860) 347-0301
## 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:** Anesthesiologists Of Middletown, P.C. (NPI 1851317135, Middletown, CT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1985
## Record status
- **NPPES last updated:** July 9, 2007
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Source: [NPI Profile](https://npiprofile.com/npi/1053331439) · Data from the CMS NPPES public registry.