DENNIS STEPHEN STRITTMATTER MD
NPI 1508840711
Obstetrics & Gynecology in Port Jefferson, NY
About Dennis Stephen Strittmatter Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DENNIS STEPHEN STRITTMATTER MD (NPI 1508840711) is an individual obstetrics & gynecology provider in Port Jefferson, New York, licensed in New York (223903) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Long Island Community Hospital, and is a graduate of Creighton University School Of Medicine (1998).
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
Dennis Stephen Strittmatter 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 Dennis Strittmatter reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Port Jefferson Station, NY 11776
- Reassigned Medicare billing, New York enrollment
- 636 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 11
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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Long Island Community Hospital
Acute Care Hospitals · Patchogue, NYJohn T Mather Memorial Hospital Of Port Jefferson
Acute Care Hospitals · Port Jefferson, NYSuny/Stony Brook University Hospital
Acute Care Hospitals · Stony Brook, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11777 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 17
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PORT JEFFERSON, NY 11777
PORT JEFFERSON STATION, NY 11777
PORT JEFFERSON, NY 11777
PORT JEFFERSON, NY 11777
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 Dennis Strittmatter's NPI number?
The NPI number for Dennis Strittmatter is 1508840711. It was assigned to this individual provider in the NPPES registry on December 1, 2005.
Where is Dennis Strittmatter located?
Dennis Strittmatter practices at 118 N Country Rd, Port Jefferson, NY 11777. The listed phone number is (631) 473-7171.
What is Dennis Strittmatter's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Dennis Strittmatter enrolled in Medicare?
Yes. Dennis Strittmatter 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 Dennis Strittmatter's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dennis Strittmatter reassigns Medicare benefits to North Shore Hematology Oncology Associates PC (Port Jefferson Station, NY). 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 Dennis Strittmatter's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Dennis Strittmatter affiliated with any hospitals?
According to CMS data, Dennis Strittmatter is affiliated with Long Island Community Hospital, John T Mather Memorial Hospital Of Port Jefferson and Suny/Stony Brook University Hospital.
When was this NPI record last updated?
The NPPES record for Dennis Strittmatter was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.
# Dennis Stephen Strittmatter, MD · NPI 1508840711
Obstetrics & Gynecology physician in Port Jefferson, New York. Individual provider, active in the CMS NPPES registry since December 1, 2005.
## Identity
- **NPI:** 1508840711 (Entity type: Individual)
- **Enumerated:** December 1, 2005
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 223903 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 118 N COUNTRY RD, Port Jefferson, NY 11777-2120
- **Phone:** (631) 473-7171 · **Fax:** (631) 473-4605
## 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:** North Shore Hematology Oncology Associates PC (NPI 1396794574, Port Jefferson Station, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Creighton University School Of Medicine, class of 1998
## Record status
- **NPPES last updated:** July 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1508840711) · Data from the CMS NPPES public registry.