MARIAM SAJJAD BAIG MD
NPI 1033613559
Internal Medicine - Cardiovascular Disease in New Haven, CT
About Mariam Sajjad Baig Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIAM SAJJAD BAIG MD (NPI 1033613559) is an individual cardiovascular disease provider in New Haven, Connecticut, licensed in Missouri (2025046233) and active in the NPI registry since March 2018. She is enrolled in Medicare PECOS, is affiliated with St Lukes Hospital, and is a graduate of University Of Missouri, Kansas City, School Of Medicine (2018).
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
Mariam Sajjad Baig 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 Mariam Baig reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chesterfield, MO 63017
- Reassigned Medicare billing, Missouri enrollment
- Medicare enrollment name: Cardiac Specialists Of St Lukes LLC
- 12 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Lukes Hospital
Acute Care Hospitals · Chesterfield, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06510 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.
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
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 Mariam Baig's NPI number?
The NPI number for Mariam Baig is 1033613559. It was assigned to this individual provider in the NPPES registry on March 20, 2018.
Where is Mariam Baig located?
Mariam Baig practices at 20 York St, New Haven, CT 06510. The listed phone number is (203) 688-4242.
What is Mariam Baig's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Mariam Baig enrolled in Medicare?
Yes. Mariam Baig 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 Mariam Baig's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mariam Baig reassigns Medicare benefits to Cardiac Specialists Of St Luke's, LLC (Chesterfield, MO). 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 Mariam Baig's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mariam Baig accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 4 other insurers list Mariam Baig 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.
Is Mariam Baig affiliated with any hospitals?
According to CMS data, Mariam Baig is affiliated with St Lukes Hospital.
When was this NPI record last updated?
The NPPES record for Mariam Baig was last updated on November 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Mariam Sajjad Baig, MD · NPI 1033613559
Cardiovascular Disease physician in New Haven, Connecticut. Individual provider, active in the CMS NPPES registry since March 20, 2018.
## Identity
- **NPI:** 1033613559 (Entity type: Individual)
- **Enumerated:** March 20, 2018
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **State license:** 2025046233 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 20 YORK ST, New Haven, CT 06510-3220
- **Phone:** (203) 688-4242
## 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:** Cardiac Specialists Of St Luke's, LLC (NPI 1285691063, Chesterfield, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Missouri, Kansas City, School Of Medicine, class of 2018
## Record status
- **NPPES last updated:** November 6, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1033613559) · Data from the CMS NPPES public registry.