Mark Downey, MD
Mark Downey, MD is a Pediatrics Physician in Williamsburg, VA, registered under NPI 1003850744.
Getting there
The practice address on file is 119 BULIFANTS BLVD, Williamsburg, VA 23188. 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 |
|---|---|---|
| 0101231481 | VA | Pediatrics Physician primary |
This provider holds licence 0101231481 issued in VA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Pediatrics covers
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development. NUCC Health Care Provider Taxonomy, code 208000000X
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 | 1003850744 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 15, 2006 |
| Last updated | Feb 28, 2013 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
119 BULIFANTS BLVD Williamsburg, VA 23188 (757) 564-7337 Fax (757) 564-3205 |
| Mailing address |
119 BULIFANTS BOULEVARD Williamsburg, VA 23188 |
| Other identifiers |
010126088
· VA PREMIERE HEALTH PLAN 010126088 (VA) 41203 · SENTARA/OPTIMA 12-02789 · UNITED HEALTHCARE 54-1778786 · PHCS 54-1778786 · CCN 6731745 · CIGNA 54-1778786 · FIRST HEALTH/MAIL HANDLER 7557155 · AETNA TRADITIONAL 54-1778786-032 · CHAMPUS/TRICARE 2710497 · AETNA HMO 54-1778786 · MID ATLANTIC HEALTH SOLUT 249628 · SOUTHERN HEALTH 8128044 · MAMSI/MDIPA 153980 · ANTHEM 54-1778786 · VA HEALTH NETWORK |
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 | 0 | 0 | 3 | 8 | 5 | 0 | 7 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 7 | 5 | 0 | 7 | 8 |
Sum = 56 · next multiple of 10 = 60 · 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.