Stephen Grosse, MD
NPI 1518252998 · Emergency Medicine Physician · Boston, MA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Grosse, MD is a Emergency Medicine Physician provider in Boston, MA (NPI 1518252998).
Provider details
- NPI number
- 1518252998
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 248526 (MA)
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 tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
741 Medicare services, 2024 (ranked within specialty)
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 198 | $139 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 86 | $98 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 79 | $179 |
| X-Ray of Chest, 2 Views71046 | 55 | $33 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 53 | $110 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 57 | 56 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 46 | 35 |
| Cephalexin | 43 | 42 |
| Azithromycin | 25 | 25 |
| Amoxicillin | 23 | 23 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 21 | 21 |
| Erythromycin Basebrand: Erythromycin | 19 |
Practice location
Mailing address
Additional practice locations (1)
- 55 Lake Ave NWorcester, MA 01655-0002Phone: (508) 421-1400Fax: (508) 421-1490
Registry dates
- Enumerated
- 2011-06-14
- Last updated
- 2020-11-20
- Certified
- 2020-11-20
Frequently asked questions
- What is Stephen Grosse's NPI number?
- Stephen Grosse's National Provider Identifier (NPI) is 1518252998, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Grosse's specialty?
- Stephen Grosse is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Grosse located?
- Stephen Grosse's practice location on file with NPPES is 1 Deaconess Rd, Boston, MA 02215-5321.
- What is Stephen Grosse's phone number?
- The practice phone number listed in the NPPES registry for Stephen Grosse is (617) 754-2339.
- Does Stephen Grosse accept Medicare?
- Stephen Grosse is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Grosse's NPI active?
- Yes — Stephen Grosse's NPI (1518252998) is active in the NPPES registry as of the last update on 2020-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.