David Harriman, M.D.
David Harriman, M.D. is an Emergency Medical Services (Emergency Medicine) Physician in New Haven, CT, registered under NPI 1982654034.
Getting there
The practice address on file is 1450 CHAPEL ST, New Haven, CT 06511. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 047091 | CT | Emergency Medical Services (Emergency… primary |
This provider holds licence 047091 issued in CT. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Emergency Medicine
- PAC ID
- 8921900770
Enrolled in Medicare 4 times, across 4 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| Connecticut | I20090115000604 | Practitioner - Emergency Medicine |
| Rhode Island | I20201022002947 | Practitioner - Emergency Medicine |
| Florida | I20250107003864 | Practitioner - Emergency Medicine |
| Massachusetts | I20251008004106 | Practitioner - Emergency Medicine |
Medicare enrolment is recorded as approved under the provider type Practitioner - Emergency Medicine. There are 4 separate enrolment records across 4 states (CT, RI, FL, MA). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Emergency Medical Services covers
An emergency medicine physician who specializes in non-hospital based emergency medical services (e.g., disaster site, accident scene, transport vehicle, etc.) to provide pre-hospital assessment, treatment, and transport patients. NUCC Health Care Provider Taxonomy, code 207PE0004X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1982654034 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 11, 2006 |
| Last updated | May 28, 2013 |
| Status | Active |
| Sole proprietor | No |
| Credential | M.D. |
| Practice address |
1450 CHAPEL ST New Haven, CT 06511 (203) 789-3469 Fax (203) 867-5264 |
| Other identifiers |
403646800
· Medicaid (MD) |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 9 | 8 | 2 | 6 | 5 | 4 | 0 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 9 | 7 | 2 | 3 | 5 | 8 | 0 | 6 |
Sum = 66 · next multiple of 10 = 70 · check digit = 4 · actual last digit = 4
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.