Hasan Karim Khondker, M.D.
Nephrology Physician · Riverhead, NY
Hasan Karim Khondker, M.D. is a nephrology physician with a practice address in Riverhead, New York, and NPI 1194972729, issued on Aug 26, 2008. Check the license (New York 254607, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Hasan Karim Khondker
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 254607 NY
Self-reported in NPPES; status is on the state search - Practice location
- 758 Harrison Ave, Riverhead, NY 11901
- Phone
- (631) 727-5112
- Enumerated
- Aug 26, 2008
- Record last updated
- Nov 30, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (631) 727-9061
- Medicare enrollment
- Enrolled (PECOS I20110513000262); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,049 in New York → Look up another NPI →
Also registered at 758 Harrison Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Purshotam Nagwani, MDNephrology Physician1811920507
Verify Hasan Karim Khondker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 254607Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average nephrology physician in 2024
516 Medicare Part D claims for 211 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
Most prescribed
- Calcitriol140 claims
- Potassium Chloride33 claims
- Calcium Acetate32 claims
- Amlodipine Besylate25 claims
- Paricalcitol22 claims
- Amoxicillin-Clavulanate Potass21 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Southwest Suffolk Medical PCPort Jefferson, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hasan Karim Khondker among 1,049 nephrology physician records in New York
Hasan Karim Khondker, M.D. is one of 1,049 nephrology physician records with a practice address in New York. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 61% of them.
- NPI issued2008 · 61% of these records are older, 32% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2006 · median 1999 among the 764 with a school on file
- Record last updated2015 · 64% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in New York
There are 1,049 nephrology physician records in New York.
All 1,049 in New York → Every provider in Riverhead → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Sharmini Jayamaha, M.D.Riverhead, NY 119011912942558
- Purshotam Nagwani, MDRiverhead, NY 119011811920507
- Neeru Kumar, M.D.Shirley, NY 119671255650685
- Hebbalmath Thippeswamy, MDShirley, NY 119671285683771
- Amy Dalton, DOSouthampton, NY 119681144742917
- Louis Spiegel, M.D.Southampton, NY 119681821230715
- Steven Bourla, M.D.Plainview, NY 118031649216367
- Mohsen Pahlavan, MDPlainview, NY 118031518945310
Common questions
What is Hasan Karim Khondker, M.D.'s NPI number?
Hasan Karim Khondker, M.D.'s National Provider Identifier (NPI) is 1194972729, issued on Aug 26, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Hasan Karim Khondker, M.D. located?
The NPPES record lists a practice address at 758 Harrison Ave, Riverhead, NY, 11901. Phone: (631) 727-5112. Providers update this record themselves, so call before visiting.
How can I verify Hasan Karim Khondker, M.D.'s license?
NPPES lists New York license number 254607, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Hasan Karim Khondker, M.D. prescribe under Medicare Part D?
In 2024, Hasan Karim Khondker, M.D. had 516 Medicare Part D claims for 211 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
What is Hasan Karim Khondker, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.