Himmat Grewal, M.B.,B.S, M.D
NPI 1790198489 · Internal Medicine Physician · Worcester, MA
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Himmat Grewal, M.B.,B.S, M.D is a Internal Medicine Physician provider in Worcester, MA (NPI 1790198489).
Provider details
- NPI number
- 1790198489
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.B.,B.S, M.D
- Sex
- Male
- Sole proprietor
- Yes
- License
- 260257 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 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
70 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 53 | $205 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 17 | $139 |
Typical Medicare-allowed amounts for these services range $139–$205 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 98 | 29 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 40 | 12 |
| Fluticasone Propionate | 36 | 12 |
| Azelastine Hcl | 27 | — |
| Tiotropium Br/Olodaterol Hclbrand: Stiolto Respimat | 26 | — |
| Albuterol Sulfatebrand: Ventolin Hfa | 21 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$278 across 5 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
Registry dates
- Enumerated
- 2014-06-10
- Last updated
- 2014-06-11
Frequently asked questions
- What is Himmat Grewal's NPI number?
- Himmat Grewal's National Provider Identifier (NPI) is 1790198489, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Himmat Grewal's specialty?
- Himmat Grewal is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Himmat Grewal located?
- Himmat Grewal's practice location on file with NPPES is 123 Summer St, Worcester, MA 01608-1216.
- What is Himmat Grewal's phone number?
- The practice phone number listed in the NPPES registry for Himmat Grewal is (508) 363-6208.
- Does Himmat Grewal accept Medicare?
- Himmat Grewal is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Himmat Grewal's NPI active?
- Yes — Himmat Grewal's NPI (1790198489) is active in the NPPES registry as of the last update on 2014-06-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.