Harmanjot Grewal, M.D.
NPI 1396904090 · Rheumatology Physician · Baton Rouge, LA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Harmanjot Grewal, M.D. is a Rheumatology Physician provider in Baton Rouge, LA (NPI 1396904090).
Provider details
- NPI number
- 1396904090
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD.204626 (LA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
7 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
426 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 177 | $15 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 122 | $91 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 43 | $135 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 31 | $108 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 43 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 285 | 98 |
| Methotrexate Sodiumbrand: Methotrexate | 224 | 60 |
| Hydroxychloroquine Sulfate | 187 | 61 |
| Allopurinol | 141 | 38 |
| Diclofenac Sodium | 114 | 31 |
| Duloxetine Hcl | 89 | 28 |
| Tizanidine Hcl | 82 | 29 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,409 across 64 records (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
Additional practice locations (6)
- 7777 Hennessy Blvd Ste 501aBaton Rouge, LA 70808-4300Phone: (225) 765-6505
- 2647 S Saint Elizabeth Blvd Ste 220Gonzales, LA 70737-5020Phone: (225) 765-6505
- 15813 Paul Vega MD Dr Ste 400Hammond, LA 70403Phone: (985) 230-1835Fax: (985) 230-1836
- 15813 Paul Vega MD Dr Ste 400Hammond, LA 70403Phone: (985) 230-1835Fax: (985) 230-1836
- 15813 Paul Vega MD Dr Ste 400Hammond, LA 70403Phone: (985) 230-1835Fax: (985) 230-1836
- 64040 Hwy 434Suite 200Lacombe, LA 70445Phone: (985) 892-9233Fax: (985) 892-8916
Registry dates
- Enumerated
- 2008-06-06
- Last updated
- 2021-01-25
- Certified
- 2021-01-25
Frequently asked questions
- What is Harmanjot Grewal's NPI number?
- Harmanjot Grewal's National Provider Identifier (NPI) is 1396904090, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harmanjot Grewal's specialty?
- Harmanjot Grewal is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Harmanjot Grewal located?
- Harmanjot Grewal's practice location on file with NPPES is 7777 Hennessy Blvd Ste 501a, Baton Rouge, LA 70808.
- What is Harmanjot Grewal's phone number?
- The practice phone number listed in the NPPES registry for Harmanjot Grewal is (225) 765-6505.
- Does Harmanjot Grewal accept Medicare?
- Harmanjot Grewal is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Harmanjot Grewal's NPI active?
- Yes — Harmanjot Grewal's NPI (1396904090) is active in the NPPES registry as of the last update on 2021-01-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.