Craig Grobman, D.O.
NPI 1639119621 · Internal Medicine Physician · Melville, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Craig Grobman, D.O. is a Internal Medicine Physician provider in Melville, NY (NPI 1639119621).
Provider details
- NPI number
- 1639119621
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 232031 (NY)
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
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
14,158 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 505 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 493 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 493 | $8 |
| Glutamyltransferase (liver Enzyme) Level82977 | 490 | $7 |
| Magnesium Level83735 | 490 | $7 |
| Thyroxine (thyroid Chemical), Free84439 | 422 | $9 |
| Blood Test, Thyroid Stimulating Hormone (tsh) |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 53 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 186 | 71 |
| Atorvastatin Calcium | 140 | 56 |
| Tirzepatidebrand: Mounjaro | 134 | 25 |
| Levothyroxine Sodium | 119 | 44 |
| Losartan Potassium | 100 | 34 |
| Pantoprazole Sodium | 78 | 32 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,864 across 57 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
- 2006-06-07
- Last updated
- 2025-08-14
- Certified
- 2025-08-01
Frequently asked questions
- What is Craig Grobman's NPI number?
- Craig Grobman's National Provider Identifier (NPI) is 1639119621, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Craig Grobman's specialty?
- Craig Grobman is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Craig Grobman located?
- Craig Grobman's practice location on file with NPPES is 900 Walt Whitman Road, Melville, NY 11747-2215.
- What is Craig Grobman's phone number?
- The practice phone number listed in the NPPES registry for Craig Grobman is (516) 817-6423.
- Does Craig Grobman accept Medicare?
- Craig Grobman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Craig Grobman's NPI active?
- Yes — Craig Grobman's NPI (1639119621) is active in the NPPES registry as of the last update on 2025-08-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.