Marzuq Billah, M.D.
NPI 1689036774 · Nephrology Physician · New Haven, CT
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marzuq Billah, M.D. is a Nephrology Physician provider in New Haven, CT (NPI 1689036774).
Provider details
- NPI number
- 1689036774
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 310065 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
460 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 234 | $80 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 93 | $121 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 55 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 39 | $134 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 21 | $176 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 44 | 17 |
| Parenteral Amino Acid 15% No.5brand: Clinisol | 27 | — |
| Spironolactone | 23 | — |
| Amlodipine Besylate | 18 | — |
| Empagliflozinbrand: Jardiance | 18 | — |
| Midodrine Hcl | 15 | — |
| Sodium Zirconium Cyclosilicate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 1 Gustave L Levy PlNew York, NY 10029-6504Phone: (212) 241-6500
- 36 W 60th StNew York, NY 10023-7903Phone: (212) 523-8672Fax: (212) 265-3416
Registry dates
- Enumerated
- 2016-03-28
- Last updated
- 2023-09-27
- Certified
- 2023-09-27
Frequently asked questions
- What is Marzuq Billah's NPI number?
- Marzuq Billah's National Provider Identifier (NPI) is 1689036774, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marzuq Billah's specialty?
- Marzuq Billah is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Marzuq Billah located?
- Marzuq Billah's practice location on file with NPPES is 800 Howard Ave Fl 2, New Haven, CT 06519-1369.
- What is Marzuq Billah's phone number?
- The practice phone number listed in the NPPES registry for Marzuq Billah is (203) 785-4184.
- Does Marzuq Billah accept Medicare?
- Marzuq Billah is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marzuq Billah's NPI active?
- Yes — Marzuq Billah's NPI (1689036774) is active in the NPPES registry as of the last update on 2023-09-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.