CASEY R JOHNSON MD
NPI 1154882694
Pediatrics - Pediatric Gastroenterology in Boston, MA

Active since March 27, 2019PECOS EnrolledAccepts Medicare Assignment
300 LONGWOOD AVE, BOSTON, MA 02115(617) 355-6000 Get Directions Write a Review

NPPES record last updated: May 15, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 15, 2025, Nov 4, 2022, Aug 27, 2020 and 1 more (4 updates tracked since 2020).

About Casey R Johnson Md NPPES

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

CASEY R JOHNSON MD (NPI 1154882694) is an individual pediatric gastroenterology provider in Boston, Massachusetts, licensed in Massachusetts (292195) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with Boston Children's Hospital, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1154882694
Entity TypeIndividualMale
Primary Taxonomy2080P0206X
Provider Legal NameCASEY R JOHNSONCredential: MD
Location Address300 LONGWOOD AVEBoston, MA 02115-5724
Mailing Address300 Longwood AveBoston, MA 02115-5724 · (617) 355-6000
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateMarch 27, 2019
Last NPPES UpdateMay 15, 20254 updates tracked since enumeration
NPPES CertifiedMay 15, 2025
NPI 1154882694 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPediatrics · Pediatric GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0206X
License Licensed in MA · 292195
Definition
A pediatrician who specializes in the diagnosis and treatment of diseases of the digestive systems of infants, children and adolescents. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using lighted scopes to see internal organs.
300 LONGWOOD AVE, Boston, MA 02115

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Casey R Johnson Md 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 ID5597099010
PECOS Enrollment IDI20250522000242
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.

Hospital Affiliations CMS Care Compare

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

Boston Children's Hospital

Childrens · Boston, MA
OwnershipVoluntary non-profit - Private
CMS Certification Number223302
Location300 Longwood AvenueBoston, MA 02115 · Suffolk County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02115 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.

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.

Social Worker (Clinical)
300 LONGWOOD AVE
BOSTON, MA 02115
Nurse Practitioner (Psychiatric/Mental Health)
300 LONGWOOD AVE
BOSTON, MA 02115
Anesthesiology (Pediatric Anesthesiology)
300 LONGWOOD AVE
BOSTON, MA 02115
Physical Therapist
300 LONGWOOD AVE
BOSTON, MA 02115
Social Worker (Clinical)
300 LONGWOOD AVE, CHILDREN'S HOSPITAL BOSTON
BOSTON, MA 02115
Pediatrics
300 LONGWOOD AVE, BADER 203
BOSTON, MA 02115
Nurse Practitioner (Pediatrics)
300 LONGWOOD AVE, HUNNEWELL BUILDING 322
BOSTON, MA 02115
Pediatrics (Neonatal-Perinatal Medicine)
300 LONGWOOD AVE
BOSTON, MA 02115

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 Casey Johnson's NPI number?

The NPI number for Casey Johnson is 1154882694. It was assigned to this individual provider in the NPPES registry on March 27, 2019.

Where is Casey Johnson located?

Casey Johnson practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-6000.

What is Casey Johnson's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Gastroenterology, with taxonomy code 2080P0206X.

Is Casey Johnson enrolled in Medicare?

Yes. Casey Johnson 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.

What insurance does Casey Johnson accept?

Health plans from Anthem Blue Cross and Blue Shield list Casey Johnson 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 Casey Johnson affiliated with any hospitals?

According to CMS data, Casey Johnson is affiliated with Boston Children's Hospital.

When was this NPI record last updated?

The NPPES record for Casey Johnson was last updated on May 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.