DR. JOHN MICHAEL CASTELLANO M.D.
NPI 1821036187
Anesthesiology in Allentown, PA
About Dr. John Michael Castellano M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN MICHAEL CASTELLANO M.D. (NPI 1821036187) is an individual anesthesiology provider in Allentown, Pennsylvania, licensed in Pennsylvania (MD482485) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Lehigh Valley Hospital, and maintains a secondary practice location in Rockville.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 2
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. John Michael Castellano 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.
Medicare Billing Reassignments
2Medicare enrollment records show John Castellano reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Allentown, PA 18103
- Reassigned Medicare billing, Pennsylvania enrollment
- 2,895 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 1,477 clinicians in this Medicare group
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 21
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lehigh Valley Hospital
Acute Care Hospitals · Allentown, PALehigh Valley Hospital - Hazleton
Acute Care Hospitals · Hazleton, PAOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ALLENTOWN, PA 18103
ALLENTOWN, PA 18103
ALLENTOWN, PA 18103
ALLENTOWN, PA 18103
ALLENTOWN, PA 18103
ALLENTOWN, PA 18103
ALLENTOWN, PA 18103
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 John Castellano's NPI number?
The NPI number for John Castellano is 1821036187. It was assigned to this individual provider in the NPPES registry on June 2, 2006.
Where is John Castellano located?
John Castellano practices at 1200 S Cedar Crest Blvd Fl 2, Allentown, PA 18103. The listed phone number is (610) 402-6164.
What is John Castellano's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is John Castellano enrolled in Medicare?
Yes. John Castellano 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 John Castellano's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Castellano reassigns Medicare benefits to 2 organizations: Lehigh Valley Physician Group (Allentown, PA) and Beth Israel Deaconess Medical Center, Inc. (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 John Castellano's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is John Castellano affiliated with any hospitals?
According to CMS data, John Castellano is affiliated with Lehigh Valley Hospital and Lehigh Valley Hospital - Hazleton.
When was this NPI record last updated?
The NPPES record for John Castellano was last updated on February 13, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.