DR. MARTI D. SOFFER MD, MPH
NPI 1659758563
Obstetrics & Gynecology - Maternal & Fetal Medicine in Stamford, CT
About Dr. Marti D. Soffer Md, Mph NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARTI D. SOFFER MD, MPH (NPI 1659758563) is an individual maternal & fetal medicine provider in Stamford, Connecticut, licensed in Massachusetts (277923) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS and is a graduate of Icahn School Of Medicine At Mount Sinai (2015).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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. Marti D. Soffer Md, Mph 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 Marti Soffer reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Bridgeport, CT 06604
- Reassigned Medicare billing, Connecticut enrollment
- 132 clinicians in this Medicare group
Stamford, CT 06907
- Reassigned Medicare billing, Connecticut enrollment
- 496 clinicians in this Medicare group
Northampton, MA 01060
- Reassigned Medicare billing, Massachusetts enrollment
- 539 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts and New Hampshire enrollments
- 6,360 clinicians in this Medicare group
Oak Bluffs, MA 02557
- Reassigned Medicare billing, Massachusetts enrollment
- 251 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06902 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
STAMFORD, CT 06902
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 Marti Soffer's NPI number?
The NPI number for Marti Soffer is 1659758563. It was assigned to this individual provider in the NPPES registry on April 29, 2015.
Where is Marti Soffer located?
Marti Soffer practices at 1 Hospital Plz, Stamford, CT 06902. The listed phone number is (203) 276-7060.
What is Marti Soffer's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Maternal & Fetal Medicine, with taxonomy code 207VM0101X.
Is Marti Soffer enrolled in Medicare?
Yes. Marti Soffer 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 Marti Soffer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marti Soffer reassigns Medicare benefits to 6 organizations: Optimus Health Care Inc (Bridgeport, CT), Stamford Health Medical Group Inc (Stamford, CT), Mass General Brigham Medical Group Western Massachusetts Inc (Northampton, MA), The General Hospital Corporation (Boston, MA), Massachusetts General Physicians Organization Inc (Boston, MA) 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 Marti Soffer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marti Soffer accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Marti Soffer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Marti Soffer was last updated on July 6, 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.
# Dr. Marti D. Soffer, MD, MPH · NPI 1659758563
Maternal & Fetal Medicine physician in Stamford, Connecticut. Individual provider, active in the CMS NPPES registry since April 29, 2015.
## Identity
- **NPI:** 1659758563 (Entity type: Individual)
- **Enumerated:** April 29, 2015
- **Primary specialty:** Obstetrics & Gynecology - Maternal & Fetal Medicine · taxonomy 207VM0101X
- **State license:** 277923 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 HOSPITAL PLZ, Stamford, CT 06902-3602
- **Phone:** (203) 276-7060
## 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): Optimus Health Care Inc (NPI 1215207782, Bridgeport, CT); Stamford Health Medical Group Inc (NPI 1154633980, Stamford, CT); Mass General Brigham Medical Group Western Massachusetts Inc (NPI 1295787919, Northampton, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA); Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Icahn School Of Medicine At Mount Sinai, class of 2015
## Record status
- **NPPES last updated:** July 6, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1659758563) · Data from the CMS NPPES public registry.