Manjit Grewal, M.D.
NPI 1982694519 · Nephrology Physician · Flint, MI
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
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)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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 .
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.
Practice location
Mailing address
Registry dates
- 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.