What is Manjit Grewal's NPI number?

Manjit Grewal's National Provider Identifier (NPI) is 1982694519, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Manjit Grewal's specialty?

Manjit Grewal is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).

Where is Manjit Grewal located?

Manjit Grewal's practice location on file with NPPES is G1071 N Ballenger Hwy, Flint, MI 48504-4453.

What is Manjit Grewal's phone number?

The practice phone number listed in the NPPES registry for Manjit Grewal is (810) 238-4172.

Does Manjit Grewal accept Medicare?

Manjit Grewal is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Manjit Grewal's NPI active?

Yes — Manjit Grewal's NPI (1982694519) is active in the NPPES registry as of the last update on 2018-08-14.

IndividualActiveAccepts Medicare

Manjit Grewal, M.D.

NPI 1982694519 · Nephrology Physician · Flint, MI

Manjit Grewal, M.D. is a Nephrology Physician provider in Flint, MI (NPI 1982694519).

Provider details

NPI number: 1982694519
Entity type: Individual
Primary specialty: Nephrology PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No
License: 4301063741 (MI)

Practice location

G1071 N Ballenger Hwy

Suite 310

Flint, MI 48504-4453

Phone: (810) 238-4172

Fax: (810) 238-4153

Street-level locationGet directions

More MI providers

Mailing address

3733 Heron Ridge Dr

Rochester Hills, MI 48309-4522

Specialties & taxonomies

Nephrology PhysicianPrimary207RN0300XLicense 4301063741 (MI)
Allopathic & Osteopathic Physicians
Specialist174400000XLicense 4301063741 (MI)
Other Service Providers

Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(88/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure25% of score
21 yrs in NPPES registry
Profile completeness25% of score
100% of core fields populated
Practice footprint15% of score
1 documented practice location
Medicare service volume (vs. specialty peers)25% of score
2,413 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 methodology.

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	510	$75
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	495	$99
Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960	393	$332
Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231	363	$45
Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222	144	$126
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 54 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Losartan Potassium	394	139
Calcitriol	359	125
Lisinopril	314	115
Amlodipine Besylate	298	120
Allopurinol	216	88
Spironolactone	194	69
Hydralazine Hcl	141	44

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$18 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.

Enumerated: 2005-10-25
Last updated: 2018-08-14

Frequently asked questions

What is Manjit Grewal's NPI number?: Manjit Grewal's National Provider Identifier (NPI) is 1982694519, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Manjit Grewal's specialty?: Manjit Grewal is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
Where is Manjit Grewal located?: Manjit Grewal's practice location on file with NPPES is G1071 N Ballenger Hwy, Flint, MI 48504-4453.
What is Manjit Grewal's phone number?: The practice phone number listed in the NPPES registry for Manjit Grewal is (810) 238-4172.
Does Manjit Grewal accept Medicare?: Manjit Grewal is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Manjit Grewal's NPI active?: Yes — Manjit Grewal's NPI (1982694519) is active in the NPPES registry as of the last update on 2018-08-14.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

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	510	$75
Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214	495	$99
Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960	393	$332
Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231	363	$45
Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222	144	$126
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More

Drug

Part D claims (2024)

Beneficiaries

Losartan Potassium

394

139

Calcitriol

359

125

Lisinopril

314

115

Amlodipine Besylate

298

120

Allopurinol

216

Spironolactone

194

Hydralazine Hcl

141

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$18 across 1 record (Open Payments 2024)

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments