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DR. MARZUQ MOHAMMAD BILLAH M.D.
NPI 1689036774
Internal Medicine - Nephrology in New Haven, CT

Active since March 28, 2016PECOS Enrolled
800 HOWARD AVE FL 2, NEW HAVEN, CT 06519(203) 785-4184 Get Directions Write a Review

NPPES record last updated: September 27, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 25, 2022, May 20, 2021, Feb 17, 2020 and 1 more (4 updates tracked since 2016).

About Dr. Marzuq Mohammad Billah M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARZUQ MOHAMMAD BILLAH M.D. (NPI 1689036774) is an individual nephrology provider in New Haven, Connecticut, licensed in Connecticut (74554) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS, is affiliated with Montefiore Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1689036774
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameDR. MARZUQ MOHAMMAD BILLAHCredential: M.D.
Location Address800 HOWARD AVE FL 2New Haven, CT 06519-1369
Mailing Address800 Howard Ave Fl 2New Haven, CT 06519-1369 · (203) 785-4184
Phone(203) 785-4184
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateMarch 28, 2016
Last NPPES UpdateSeptember 27, 20234 updates tracked since enumeration
NPPES CertifiedSeptember 27, 2023
✔ NPI 1689036774 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
Licenses✔ Licensed in CT · 74554✔ Licensed in NY · 310065
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Also ListedInternal MedicineTaxonomy 207R00000X · License 310065 (NY)
800 HOWARD AVE FL 2, New Haven, CT 06519
Open in Google Maps ↗

Secondary Practice Locations 2

Location 11 Gustave L Levy PlNew York, NY 10029-6504 · Phone (212) 241-6500
Location 236 W 60th StNew York, NY 10023-7903 · Phone (212) 523-8672 · Fax (212) 265-3416

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Marzuq Mohammad Billah M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1456694272
PECOS Enrollment IDI20220610000395, I20240110002504
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Marzuq Billah reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Yale University
0.4 mi
Advanced Practice Midwife
100 CHURCH ST S STE 200, YALE SCHOOL OF NURSING
New Haven, CT 06519
  • Reassigned Medicare billing, Connecticut enrollment
  • 3,728 clinicians in this Medicare group
NPI 1124148887 (203) 737-5432
Montefiore Medical Center
57 mi
Anesthesiology
111 E 210TH ST
Bronx, NY 10467
  • Reassigned Medicare billing, New York enrollment
  • 5,251 clinicians in this Medicare group
NPI 1063525152 (914) 378-6021
Icahn School Of Medicine At Mount Sinai
64 mi
Gastroenterology
1 GUSTAVE L LEVY PL
New York, NY 10029
  • Reassigned Medicare billing, New York enrollment
  • 65 clinicians in this Medicare group
NPI 1730440777 (212) 987-3100

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 5

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
234 services80 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
93 services34 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
39 services20 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
21 services21 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
18 services18 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Montefiore Medical Center

Acute Care Hospitals · Bronx, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330059
Location111 East 210th StreetBronx, NY 10467 · Bronx County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06519 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.84 typical visit price
range $60.82 – $183.10
Typical copayment $34.71 (range $15.20 – $45.77)
Most-billed visit code 99204
Established Patient
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. CHRISTINE M HANNA APRN
Nurse Practitioner (Family)
800 HOWARD AVE FL 2
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 785-7191
NAOMI HANNA KUNSTLER TWICKLER
Social Worker (Clinical)
800 HOWARD AVE FL 2
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 214-8043
JEFFREY P CURRAN
Nurse Practitioner (Family)
800 HOWARD AVE FL 2
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 785-2561

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 Marzuq Billah's NPI number?

The NPI number for Marzuq Billah is 1689036774. It was assigned to this individual provider in the NPPES registry on March 28, 2016.

Where is Marzuq Billah located?

Marzuq Billah practices at 800 Howard Ave Fl 2, New Haven, CT 06519. The listed phone number is (203) 785-4184.

What is Marzuq Billah's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Marzuq Billah enrolled in Medicare?

Yes. Marzuq Billah is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Marzuq Billah's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marzuq Billah reassigns Medicare benefits to 3 organizations: Yale University (New Haven, CT), Montefiore Medical Center (Bronx, NY) and Icahn School Of Medicine At Mount Sinai (New York, NY). 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 Marzuq Billah's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Marzuq Billah accept?

Health plans from Anthem Blue Cross and Blue Shield list Marzuq Billah 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 Marzuq Billah affiliated with any hospitals?

According to CMS data, Marzuq Billah is affiliated with Montefiore Medical Center.

When was this NPI record last updated?

The NPPES record for Marzuq Billah was last updated on September 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.