Marzuq Mohammad Billah, M.D.
Nephrology Physician · New Haven, CT
Marzuq Mohammad Billah, M.D. is a nephrology physician with a practice address in New Haven, Connecticut, and NPI 1689036774, issued on Mar 28, 2016. Check the license (Connecticut 74554, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Marzuq Mohammad Billah
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License numbers
- 74554 CT
310065 NY
Self-reported in NPPES; status is on the state search - Practice location
- 800 Howard Ave FL 2, New Haven, CT 06519
- Phone
- (203) 785-4184
- Enumerated
- Mar 28, 2016
- Record last updated
- Sep 27, 2023
- Medicare enrollment
- Enrolled (PECOS I20240110002504); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 167 in Connecticut → Look up another NPI →
Also registered at 800 Howard Ave FL 2
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeffrey CurranFamily Nurse Practitioner1699124248
- Christine Hanna, APRNFamily Nurse Practitioner1053859249
- Naomi TwicklerClinical Social Worker1154843902
Verify Marzuq Mohammad Billah in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 74554Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average nephrology physician in 2024
317 Medicare Part D claims for 85 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Losartan Potassium44 claims
- Clinisol27 claims
- Spironolactone23 claims
- Amlodipine Besylate18 claims
- Jardiance18 claims
- Midodrine Hcl15 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $19.74
1 payment: food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Yale UniversityNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marzuq Mohammad Billah among 167 nephrology physician records in Connecticut
Marzuq Mohammad Billah, M.D. is one of 167 nephrology physician records with a practice address in Connecticut. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 85% of them.
- NPI issued2016 · 85% of these records are older, 12% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2015 · median 2002 among the 116 with a school on file
- Record last updated2023 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Connecticut
There are 167 nephrology physician records in Connecticut.
All 167 in Connecticut → Every provider in New Haven → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Ali Abu-Alfa, MDNew Haven, CT 065191841274610
- Peter Aronson, MDNew Haven, CT 065191124002985
- Margaret Bia, MDNew Haven, CT 065191114901980
- Ursula Brewster, MDNew Haven, CT 065191952385718
- Lloyd Cantley, MDNew Haven, CT 065191578549366
- Richard Formica, MDNew Haven, CT 065191730163502
- Sunita Goyal, MDNew Haven, CT 065191952373219
- Daniel Guevara-Pineda, M.DNew Haven, CT 065191093962805
Common questions
What is Marzuq Mohammad Billah, M.D.'s NPI number?
Marzuq Mohammad Billah, M.D.'s National Provider Identifier (NPI) is 1689036774, issued on Mar 28, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Marzuq Mohammad Billah, M.D. located?
The NPPES record lists a practice address at 800 Howard Ave FL 2, New Haven, CT, 06519. Phone: (203) 785-4184. Providers update this record themselves, so call before visiting.
How can I verify Marzuq Mohammad Billah, M.D.'s license?
NPPES lists Connecticut license number 74554, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marzuq Mohammad Billah, M.D. prescribe under Medicare Part D?
In 2024, Marzuq Mohammad Billah, M.D. had 317 Medicare Part D claims for 85 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.