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DR. FLAVIA VEERA CASTELINO M.D.
NPI 1962611301
Internal Medicine - Rheumatology in Boston, MA

Active since May 22, 2007PECOS EnrolledAccepts Medicare Assignment
55 FRUIT ST YAWKEY 2C, RHEUMATOLOGY UNIT, MGH,, BOSTON, MA 02114(617) 726-7938 Get Directions Write a Review

NPPES record last updated: February 18, 2011. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Flavia Veera Castelino M.d. NPPES

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

DR. FLAVIA VEERA CASTELINO M.D. (NPI 1962611301) is an individual rheumatology provider in Boston, Massachusetts, licensed in Massachusetts (231346) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS, is affiliated with Cooley Dickinson Hospital Inc,the, and is a graduate of Other (2004).

NPPES Registry Identity

NPI1962611301
Entity TypeIndividualFemale
Primary Taxonomy207RR0500X
Provider Legal NameDR. FLAVIA VEERA CASTELINOCredential: M.D.
Location Address55 FRUIT ST YAWKEY 2C, RHEUMATOLOGY UNIT, MGH,Boston, MA 02114
Mailing Address55 Fruit St Yawkey 2c, Rheumatology Associates, MghBoston, MA 02114 · (617) 726-7938
Phone(617) 726-7938
Sole ProprietorNo
Medical School CMSOtherGraduated 2004
Enumeration DateMay 22, 2007
Last NPPES UpdateFebruary 18, 2011
✔ NPI 1962611301 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in MA · 231346
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
55 FRUIT ST YAWKEY 2C, Boston, MA 02114
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Taro Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Flavia Veera Castelino M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7517017411
PECOS Enrollment IDI20090616000214
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 Reassignments

2

Medicare enrollment records show Flavia Castelino reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Massachusetts General Physicians Organization Inc
Same address
Dermatology
55 FRUIT ST, BUL 2
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,360 clinicians in this Medicare group
NPI 1801874573 (617) 724-0287
The General Hospital Corporation
Same address
General Acute Care Hospital
55 FRUIT ST, BULFINCH 360
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,234 clinicians in this Medicare group
NPI 1023049236 (617) 726-2000

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

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
191 services165 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
146 services109 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
100 services75 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
41 services35 patients
Telephone medical discussion with physician, 21-30 minutes 99443
This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.
20 services20 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Cooley Dickinson Hospital Inc,the

Acute Care Hospitals · Northampton, MA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220015
Location30 Locust StreetNorthampton, MA 01060 · Hampshire County
Emergency services Birthing friendly

North Shore Medical Center -

Acute Care Hospitals · Salem, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220035
Location81 Highland AvenueSalem, MA 01970 · Essex County
Emergency services Birthing friendly

Massachusetts General Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220071
Location55 Fruit StreetBoston, MA 02114 · Suffolk County
Emergency services Birthing friendly

Newton-Wellesley Hospital

Acute Care Hospitals · Newton, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220101
Location2014 Washington StreetNewton, MA 02462 · Middlesex County
Emergency services Birthing friendly

Wentworth-Douglass Hospital

Acute Care Hospitals · Dover, NH
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300018
Location789 Central AveDover, NH 03820 · Strafford County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02114 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
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
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.

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 Flavia Castelino's NPI number?

The NPI number for Flavia Castelino is 1962611301. It was assigned to this individual provider in the NPPES registry on May 22, 2007.

Where is Flavia Castelino located?

Flavia Castelino practices at 55 Fruit St Yawkey 2C Rheumatology Unit, Mgh,, Boston, MA 02114. The listed phone number is (617) 726-7938.

What is Flavia Castelino's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Flavia Castelino enrolled in Medicare?

Yes. Flavia Castelino is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Flavia Castelino's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Flavia Castelino reassigns Medicare benefits to 2 organizations: Massachusetts General Physicians Organization Inc (Boston, MA) and The General Hospital Corporation (Boston, MA). Each 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 Flavia Castelino's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Flavia Castelino accept?

Health plans from Taro Health list Flavia Castelino as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Flavia Castelino affiliated with any hospitals?

According to CMS data, Flavia Castelino is affiliated with Cooley Dickinson Hospital Inc,the, North Shore Medical Center -, Massachusetts General Hospital, Newton-Wellesley Hospital and Wentworth-Douglass Hospital.

When was this NPI record last updated?

The NPPES record for Flavia Castelino was last updated on February 18, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.