Mark Costanzo, NP
NPI 1659850345 · Pediatric Nurse Practitioner · Boston, MA
Mark Costanzo, NP is a Pediatric Nurse Practitioner provider in Boston, MA (NPI 1659850345).
Provider details
- NPI number
- 1659850345
- Entity type
- Individual
- Primary specialty
- Pediatric Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Male
- Sole proprietor
- No
- License
- 2018027810 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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.
Practice location
Mailing address
Additional practice locations (1)
- 2401 Gillham RdKansas City, MO 64108-4619Phone: (816) 234-3000
Registry dates
- Enumerated
- 2018-08-13
- Last updated
- 2026-04-29
- Certified
- 2026-04-29
Frequently asked questions
- What is Mark Costanzo's NPI number?
- Mark Costanzo's National Provider Identifier (NPI) is 1659850345, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Costanzo's specialty?
- Mark Costanzo is listed in the NPPES registry with a primary specialty of Pediatric Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mark Costanzo located?
- Mark Costanzo's practice location on file with NPPES is 300 Longwood Ave, Boston, MA 02115-5724.
- What is Mark Costanzo's phone number?
- The practice phone number listed in the NPPES registry for Mark Costanzo is (617) 355-6000.
- Is Mark Costanzo's NPI active?
- Yes — Mark Costanzo's NPI (1659850345) is active in the NPPES registry as of the last update on 2026-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.