DR. SAGAR UDAY NIGWEKAR MD
NPI 1710939848
Internal Medicine - Nephrology in Boston, MA

Active since May 17, 2006PECOS EnrolledAccepts Medicare Assignment
165 CAMBRIDGE ST, SUITE 302, BOSTON, MA 02114(585) 729-8636 Get Directions Write a Review

NPPES record last updated: June 12, 2013. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Sagar Uday Nigwekar Md NPPES

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

DR. SAGAR UDAY NIGWEKAR MD (NPI 1710939848) is an individual nephrology provider in Boston, Massachusetts, licensed in Massachusetts (252311) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and is a graduate of Other (1999).

NPPES Registry Identity

NPI1710939848
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameDR. SAGAR UDAY NIGWEKARCredential: MD
Location Address165 CAMBRIDGE ST, SUITE 302Boston, MA 02114-2783
Mailing Address165 Cambridge St, Suite 302Boston, MA 02114-2783 · (585) 729-8636
Sole ProprietorNo
Medical School CMSOtherGraduated 1999
Enumeration DateMay 17, 2006
Last NPPES UpdateJune 12, 2013
NPI 1710939848 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License Licensed in MA · 252311
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 002578 (NY), 252311 (MA)
165 CAMBRIDGE ST, Boston, MA 02114

Other Identifiers 3

Medicaid02752789NY
Medicare PINRA9326NY
Medicare UPINI48741NY

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Sagar Uday Nigwekar Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7719991793
PECOS Enrollment IDI20121026000393
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.

Areas of Expertise CMS Part B claims 9

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 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.
284 services55 patients
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.
162 services100 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.
121 services67 patients
Hemodialysis procedure with physician evaluation 90935
Hemodialysis is a treatment that uses a machine to filter waste and excess fluid from your blood when your kidneys can't. A physician checks your health before, during, and after the procedure to ensure it's working effectively for you.
39 services18 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
25 services25 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
23 services19 patients

Hospital Affiliations CMS Care Compare 5

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

North Shore Medical Center -

Acute Care Hospitals · Salem, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220035
Location81 Highland AvenueSalem, MA 01970 · Essex County
Emergency services Birthing friendly

Melrosewakefield Healthcare

Acute Care Hospitals · Melrose, MA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220070
Location585 Lebanon StreetMelrose, MA 02176 · Middlesex County
Emergency services Birthing friendly

Massachusetts General Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220071
Location55 Fruit StreetBoston, MA 02114 · Suffolk County
Emergency services Birthing friendly

Newton-Wellesley Hospital

Acute Care Hospitals · Newton, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220101
Location2014 Washington StreetNewton, MA 02462 · Middlesex County
Emergency services Birthing friendly

Brigham And Women's Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220110
Location75 Francis StreetBoston, MA 02115 · Suffolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02114 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
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
100%55 patients5/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 20

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

Registered Nurse (Ambulatory Care)
165 CAMBRIDGE ST, MGH CROHN'S AND COLITIS CENTER
BOSTON, MA 02114
Nuclear Medicine
165 CAMBRIDGE ST, SUITE 400
BOSTON, MA 02114
Nurse Practitioner
165 CAMBRIDGE ST, GI ASSOCIATES AT CHARLES RIVER PLAZA, 9TH FLOOR
BOSTON, MA 02114
Internal Medicine (Nephrology)
165 CAMBRIDGE ST
BOSTON, MA 02114
Surgery (Trauma Surgery)
165 CAMBRIDGE ST
BOSTON, MA 02114
Nurse Practitioner (Adult Health)
165 CAMBRIDGE ST
BOSTON, MA 02114
Dietitian, Registered
165 CAMBRIDGE ST, SUITE 402
BOSTON, MA 02114
Nurse Practitioner (Family)
165 CAMBRIDGE ST, CHARLES RIVER PLAZA, SUITE 404
BOSTON, MA 02114

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 Sagar Nigwekar's NPI number?

The NPI number for Sagar Nigwekar is 1710939848. It was assigned to this individual provider in the NPPES registry on May 17, 2006.

Where is Sagar Nigwekar located?

Sagar Nigwekar practices at 165 Cambridge St Suite 302, Boston, MA 02114. The listed phone number is (585) 729-8636.

What is Sagar Nigwekar's specialty?

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

Is Sagar Nigwekar enrolled in Medicare?

Yes. Sagar Nigwekar is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Sagar Nigwekar accept?

Health plans from Anthem Blue Cross and Blue Shield list Sagar Nigwekar 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 Sagar Nigwekar affiliated with any hospitals?

According to CMS data, Sagar Nigwekar is affiliated with North Shore Medical Center -, Melrosewakefield Healthcare, Massachusetts General Hospital, Newton-Wellesley Hospital and Brigham And Women's Hospital.

When was this NPI record last updated?

The NPPES record for Sagar Nigwekar was last updated on June 12, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.