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CALVIN THAM FNP-BC
NPI 1114641214
Nurse Practitioner in Boston, MA

Active since October 03, 2022PECOS Enrolled
185 PILGRIM RD, BOSTON, MA 02215(617) 667-7000 Get Directions Write a Review

NPPES record last updated: December 13, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 13, 2022, Oct 3, 2022 (2 updates tracked since 2022).

About Calvin Tham Fnp-bc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CALVIN THAM FNP-BC (NPI 1114641214) is an individual nurse practitioner in Boston, Massachusetts, licensed in Massachusetts (RN2300087) and active in the NPI registry since October 2022. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1114641214
Entity TypeIndividualMale
Primary Taxonomy363L00000X
Provider Legal NameCALVIN THAMCredential: FNP-BC
Location Address185 PILGRIM RDBoston, MA 02215-5324
Mailing Address452 Hanover StHanover, MA 02339-2217 · (781) 888-0196
Phone(617) 667-7000
Sole ProprietorNo
Enumeration DateOctober 3, 2022
Last NPPES UpdateDecember 13, 20222 updates tracked since enumeration
NPPES CertifiedDecember 13, 2022
✔ NPI 1114641214 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in MA · RN2300087
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedRegistered NurseTaxonomy 163W00000X · License RN2300087 (MA)
185 PILGRIM RD, Boston, MA 02215
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Calvin Tham Fnp-bc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Calvin Tham reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc
0.2 mi
Internal Medicine
330 BROOKLINE AVE
Boston, MA 02215
  • Reassigned Medicare billing, Massachusetts enrollment
  • 2,579 clinicians in this Medicare group
NPI 1194765438 (617) 754-9600

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02215 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JEREMY MICHAEL ROBBINS M.D.
Internal Medicine (Cardiovascular Disease)
185 PILGRIM RD, DEACONESS 319
BOSTON, MA 02215
Suffolk County (617) 632-8800
ABHILASHA SUZANNE ELIZABETH NATARAJAN LICSW
Social Worker (Clinical)
185 PILGRIM RD
BOSTON, MA 02215
Suffolk County (617) 632-8351
JOHN M GIURINI DPM
Podiatrist
185 PILGRIM RD, DIVISION OF PODIATRY
BOSTON, MA 02215
Suffolk County (617) 632-7071
NOAH HOWARD BOTON
Internal Medicine (Infectious Disease)
185 PILGRIM RD
BOSTON, MA 02215
Suffolk County (617) 632-7706
JACLYN MICHELLE FRENCH LCSW
Social Worker (Clinical)
185 PILGRIM RD
BOSTON, MA 02215
Suffolk County (617) 632-8840
AMANDA FEIGIN
Student in an Organized Health Care Education/Training Program
185 PILGRIM RD
BOSTON, MA 02215
Suffolk County (617) 632-7000
JACQUELINE KANN LICSW
Social Worker (Clinical)
185 PILGRIM RD
BOSTON, MA 02215
Suffolk County (617) 632-8819
KATHERINE GERMAK LICSW
Social Worker (Clinical)
185 PILGRIM RD
BOSTON, MA 02215
Suffolk County (617) 632-8824

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Calvin Tham's NPI number?

The NPI number for Calvin Tham is 1114641214. It was assigned to this individual provider in the NPPES registry on October 3, 2022.

Where is Calvin Tham located?

Calvin Tham practices at 185 Pilgrim Rd, Boston, MA 02215. The listed phone number is (617) 667-7000.

What is Calvin Tham's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Calvin Tham enrolled in Medicare?

Yes. Calvin Tham is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Calvin Tham's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Calvin Tham reassigns Medicare benefits to Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc (Boston, MA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Calvin Tham's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Calvin Tham was last updated on December 13, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.