DR. JOHN S SEIF
NPI 1457525560
Anesthesiology in Cleveland, OH
About Dr. John S Seif NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN S SEIF (NPI 1457525560) is an individual anesthesiology provider in Cleveland, Ohio, licensed in Ohio (57.009814) and active in the NPI registry since April 2008. He is enrolled in Medicare PECOS, is affiliated with Marymount Hospital, and is a graduate of Other (2002).
NPPES Registry Identity
Specialties & Licenses
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 S Seif 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 Reassignment
Medicare enrollment records show John Seif reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Cleveland, OH 44195
- Reassigned Medicare billing, Ohio enrollment
- 7,608 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 7
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Marymount Hospital
Acute Care Hospitals · Garfield Heights, OHCleveland Clinic
Acute Care Hospitals · Cleveland, OHHillcrest Hospital
Acute Care Hospitals · Mayfield Heights, OHOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CLEVELAND, OH 44195
CLEVELAND, OH 44195
CLEVELAND, OH 44195
CLEVELAND, OH 44195
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 Seif's NPI number?
The NPI number for John Seif is 1457525560. It was assigned to this individual provider in the NPPES registry on April 18, 2008.
Where is John Seif located?
John Seif practices at 9500 Euclid Ave E-30, Cleveland, OH 44195. The listed phone number is (216) 445-2115.
What is John Seif's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is John Seif enrolled in Medicare?
Yes. John Seif 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 organization bills Medicare for John Seif's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Seif reassigns Medicare benefits to The Cleveland Clinic Foundation (Cleveland, OH). 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 John Seif's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is John Seif affiliated with any hospitals?
According to CMS data, John Seif is affiliated with Marymount Hospital, Cleveland Clinic and Hillcrest Hospital.
When was this NPI record last updated?
The NPPES record for John Seif was last updated on April 18, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Dr. John S Seif · NPI 1457525560
Anesthesiology physician in Cleveland, Ohio. Individual provider, active in the CMS NPPES registry since April 18, 2008.
## Identity
- **NPI:** 1457525560 (Entity type: Individual)
- **Enumerated:** April 18, 2008
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 57.009814 (Ohio)
- **Sole proprietor:** No
## Practice location
- **Address:** 9500 EUCLID AVE, E-30, Cleveland, OH 44195-0001
- **Phone:** (216) 445-2115
## 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:** The Cleveland Clinic Foundation (NPI 1679525919, Cleveland, OH), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2002
## Record status
- **NPPES last updated:** April 18, 2008
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Source: [NPI Profile](https://npiprofile.com/npi/1457525560) · Data from the CMS NPPES public registry.