Doctor profile · Federal record

Dr. Sagar Nigwekar, MD

Nephrology Physician (CMS: Nephrology) · Internal Medicine Physician · Internal Medicine Physician · Boston, MA

  • NPI 1710939848
  • Accepts Medicare
  • 27 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
165 Cambridge St, Suite 302
Boston, MA 021142783
(585) 729-8636

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
June 12, 2013
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
207RN0300X — NUCC code
State licenses (2)
Massachusetts #252311 · New York #002578
Medicaid
NY #02752789

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1710939848. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
487
Distinct HCPCS
7
Medicare allowed
$74,559
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 179 83 $84
99214 Established patient office or other outpatient visit, 30-39 minutes 156 77 $140
90961 Dialysis services, 2-3 physician visits per month (20 years or older) 88 14 $314
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 19 14 $126
99215 Established patient office or other outpatient visit, 40-54 minutes 17 12 $196
99239 Hospital discharge day management, more than 30 minutes 15 15 $123
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 13 13 $184

In context: peer comparison

Among 73 peers in Boston Nephrology Physician, average services per provider: 137. This provider delivers 3.6× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$4,476
Transactions
5
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Alexion Pharmaceuticals, INC. 2 $3,350.00
Becton, Dickinson and Company 1 $491.67
Zoll Medical Corporation 1 $491.67
Csl Behring 1 $142.86

By nature of payment

Consulting Fee
$4,333
Food and Beverage
$143

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
186
Patients
0
Total drug cost
$43,885
Drug Type Claims Patients Total cost
Calcitriol Generic 39 0 $638
Furosemide Generic 26 0 $304
Pantoprazole Sodium Generic 22 0 $534
Lisinopril Generic 19 0 $251
Renvela (Sevelamer Carbonate) Brand 16 0 $29,300
Atorvastatin Calcium Generic 15 0 $356
Diltiazem 24Hr ER (Cd) (Diltiazem Hcl) Brand 13 0 $627
Sevelamer Carbonate Generic 13 0 $3,652
Retacrit (Epoetin Alfa-Epbx) Brand 12 0 $8,099
Pentoxifylline Generic 11 0 $124

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Sagar Nigwekar's medical specialty?
Dr. Sagar Nigwekar practices Nephrology Physician in Boston, MA.
Where does Dr. Sagar Nigwekar practice?
Dr. Sagar Nigwekar practices at 165 Cambridge St, Boston, MA 021142783. Office phone: 5857298636.
What is Dr. Sagar Nigwekar's NPI?
Dr. Sagar Nigwekar's National Provider Identifier (NPI) is 1710939848, issued by NPPES.
Does Dr. Sagar Nigwekar accept Medicare assignment?
Yes. Dr. Sagar Nigwekar accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sagar Nigwekar commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99214); Dialysis services, 2-3 physician visits per month (20 years or older) (HCPCS 90961). Source: CMS Medicare Physician & Other Practitioners file.