AMY S CALDERON DO, PHARMD
NPI 1821310004
Internal Medicine - Gastroenterology in Warren, OH
About Amy S Calderon Do, Pharmd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AMY S CALDERON DO, PHARMD (NPI 1821310004) is an individual gastroenterology provider in Warren, Ohio, licensed in Ohio (34.012732) and active in the NPI registry since February 2010. She is enrolled in Medicare PECOS, is affiliated with St Elizabeth Youngstown Hospital, and is a graduate of New York College Of Osteo Medicine Of New York Institute Of Technology (2010).
NPPES Registry Identity
Specialties & Licenses 3
Other Names 1
Other Identifiers 1
Accepted 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
Amy S Calderon Do, Pharmd 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
5Medicare enrollment records show Amy Calderon reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Warren, OH 44483
- Reassigned Medicare billing, Ohio enrollment
- 54 clinicians in this Medicare group
Brookfield, OH 44403
- Reassigned Medicare billing, Ohio enrollment
- 79 clinicians in this Medicare group
Youngstown, OH 44512
- Reassigned Medicare billing, Ohio enrollment
- 317 clinicians in this Medicare group
Cleveland, OH 44195
- Reassigned Medicare billing, Ohio enrollment
- 7,608 clinicians in this Medicare group
Cleveland, OH 44109
- Reassigned Medicare billing, Ohio enrollment
- 2,147 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 8
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Elizabeth Youngstown Hospital
Acute Care Hospitals · Youngstown, OHMedina Hospital
Acute Care Hospitals · Medina, OHMh St Joseph Warren Hospital
Acute Care Hospitals · Warren, OHHmhp St Elizabeth Boardman Health Center
Acute Care Hospitals · Boardman, OHSurgical Hospital At Southwoods
Acute Care Hospitals · Youngstown, OHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 44484 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Amy Calderon's NPI number?
The NPI number for Amy Calderon is 1821310004. It was assigned to this individual provider in the NPPES registry on February 16, 2010. The provider is also known as Amy Michel Do, Pharmd.
Where is Amy Calderon located?
Amy Calderon practices at 8740 E Market St Ste 2, Warren, OH 44484. The listed phone number is (234) 287-6590.
What is Amy Calderon's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Amy Calderon enrolled in Medicare?
Yes. Amy Calderon 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 Amy Calderon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Amy Calderon reassigns Medicare benefits to 5 organizations: Insight Foundation Of Trumbull (Warren, OH), Steward Medical Group Inc. (Brookfield, OH), Triad Health Services, LLC (Youngstown, OH), The Cleveland Clinic Foundation (Cleveland, OH) and The Metrohealth System (Cleveland, OH). 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 Amy Calderon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Amy Calderon accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource and 4 other insurers list Amy Calderon 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 Amy Calderon affiliated with any hospitals?
According to CMS data, Amy Calderon is affiliated with St Elizabeth Youngstown Hospital, Medina Hospital, Mh St Joseph Warren Hospital, Hmhp St Elizabeth Boardman Health Center and Surgical Hospital At Southwoods.
When was this NPI record last updated?
The NPPES record for Amy Calderon was last updated on December 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Amy S Calderon, DO, PHARMD · NPI 1821310004
Gastroenterology physician in Warren, Ohio. Individual provider, active in the CMS NPPES registry since February 16, 2010.
## Identity
- **NPI:** 1821310004 (Entity type: Individual)
- **Enumerated:** February 16, 2010
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 34.012732 (Ohio)
- **Sole proprietor:** No
## Practice location
- **Address:** 8740 E MARKET ST STE 2, Warren, OH 44484-2324
- **Phone:** (234) 287-6590 · **Fax:** (330) 965-5090
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Insight Foundation Of Trumbull (NPI 1265268957, Warren, OH); Steward Medical Group Inc. (NPI 1902347438, Brookfield, OH); Triad Health Services, LLC (NPI 1588925457, Youngstown, OH); The Cleveland Clinic Foundation (NPI 1679525919, Cleveland, OH); The Metrohealth System (NPI 1053353896, Cleveland, OH) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York College Of Osteo Medicine Of New York Institute Of Technology, class of 2010
## Record status
- **NPPES last updated:** December 16, 2025
- **Other identifiers:** Medicaid 0220079 (OH)
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Source: [NPI Profile](https://npiprofile.com/npi/1821310004) · Data from the CMS NPPES public registry.