Calvin Tham, FNP-BC
NPI 1114641214 · Nurse Practitioner · Boston, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Calvin Tham, FNP-BC is a Nurse Practitioner provider in Boston, MA (NPI 1114641214).
Provider details
- NPI number
- 1114641214
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC
- Sex
- Male
- Sole proprietor
- No
- License
- RN2300087 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2022-10-03
- Last updated
- 2022-12-13
- Certified
- 2022-12-13
Frequently asked questions
- What is Calvin Tham's NPI number?
- Calvin Tham's National Provider Identifier (NPI) is 1114641214, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Calvin Tham's specialty?
- Calvin Tham is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Calvin Tham located?
- Calvin Tham's practice location on file with NPPES is 185 Pilgrim Rd, Boston, MA 02215-5324.
- What is Calvin Tham's phone number?
- The practice phone number listed in the NPPES registry for Calvin Tham is (617) 667-7000.
- Does Calvin Tham accept Medicare?
- Calvin Tham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Calvin Tham's NPI active?
- Yes — Calvin Tham's NPI (1114641214) is active in the NPPES registry as of the last update on 2022-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.