Richard Greiner, MD
NPI 1871602318 · Emergency Medicine Physician · Bridgeport, CT
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Richard Greiner, MD is a Emergency Medicine Physician provider in Bridgeport, CT (NPI 1871602318).
Provider details
- NPI number
- 1871602318
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD429505 (PA)
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
19 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
287 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) |
|---|---|---|
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 150 | $130 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 63 | $189 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 36 | $77 |
| Emergency Department Visit With Straightforward Medical Decision Making99282 | 25 | $44 |
| Critical Care, First 30-74 Minutes99291 | 13 | $231 |
Typical Medicare-allowed amounts for these services range $44–$231 (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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 68 | 45 |
| Ibuprofen | 44 | 43 |
| Prednisone | 42 | 42 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 22 | 22 |
| Cefuroxime Axetilbrand: Cefuroxime | 20 | 20 |
| Cephalexin | 19 | 19 |
| Gabapentin | 19 |
Practice location
Mailing address
Additional practice locations (1)
- 28 Crescent StMiddletown, CT 06457-3654Phone: (860) 358-8016
Registry dates
- Enumerated
- 2006-08-29
- Last updated
- 2022-07-21
Frequently asked questions
- What is Richard Greiner's NPI number?
- Richard Greiner's National Provider Identifier (NPI) is 1871602318, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Richard Greiner's specialty?
- Richard Greiner is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Richard Greiner located?
- Richard Greiner's practice location on file with NPPES is 267 Grant St, Bridgeport, CT 06610-2805.
- What is Richard Greiner's phone number?
- The practice phone number listed in the NPPES registry for Richard Greiner is (203) 384-3256.
- Does Richard Greiner accept Medicare?
- Richard Greiner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Richard Greiner's NPI active?
- Yes — Richard Greiner's NPI (1871602318) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.