ERIC H NAKANISHI MD
NPI 1639193667
Anesthesiology in Williamsburg, VA
About Eric H Nakanishi Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ERIC H NAKANISHI MD (NPI 1639193667) is an individual anesthesiology provider in Williamsburg, Virginia, licensed in Virginia (0101241745) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Uh Cleveland Medical Center, and maintains a secondary practice location in Cleveland.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 9
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
Eric H Nakanishi 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.
Medicare Billing Reassignments
9Medicare enrollment records show Eric Nakanishi reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Virginia Beach, VA 23456
- Reassigned Medicare billing, Virginia enrollment
- 707 clinicians in this Medicare group
Richmond, VA 23225
- Reassigned Medicare billing, Virginia enrollment
- 167 clinicians in this Medicare group
Falls Church, VA 22042
- Reassigned Medicare billing, Virginia enrollment
- 1,217 clinicians in this Medicare group
Charleston, WV 25304
- Reassigned Medicare billing, West Virginia enrollment
- 40 clinicians in this Medicare group
Garrettsville, OH 44231
- Reassigned Medicare billing, Ohio enrollment
- 1,437 clinicians in this Medicare group
Cleveland, OH 44106
- Reassigned Medicare billing, Ohio enrollment
- 3,958 clinicians in this Medicare group
Springfield, OH 45505
- Reassigned Medicare billing, Ohio enrollment
- 471 clinicians in this Medicare group
Batavia, OH 45103
- Reassigned Medicare billing, Ohio enrollment
- Medicare enrollment name: Southwest Ohio Anesthesia Consultants LLC
- 830 clinicians in this Medicare group
Bowling Green, OH 43402
- Reassigned Medicare billing, Ohio enrollment
- 22 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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Uh Cleveland Medical Center
Acute Care Hospitals · Cleveland, OHSentara Norfolk General Hospital
Acute Care Hospitals · Norfolk, VASentara Leigh Hospital
Acute Care Hospitals · Norfolk, VACjw Medical Center
Acute Care Hospitals · Richmond, VARiverside Doctors' Hospital Of Williamsburg
Acute Care Hospitals · Williamsburg, VAMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WILLIAMSBURG, VA 23185
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 Eric Nakanishi's NPI number?
The NPI number for Eric Nakanishi is 1639193667. It was assigned to this individual provider in the NPPES registry on July 26, 2006.
Where is Eric Nakanishi located?
Eric Nakanishi practices at 1500 Commonwealth Ave, Williamsburg, VA 23185. The listed phone number is (757) 585-2000.
What is Eric Nakanishi's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Eric Nakanishi enrolled in Medicare?
Yes. Eric Nakanishi 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 Eric Nakanishi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Eric Nakanishi reassigns Medicare benefits to 9 organizations: Smg Anesthesia Specialists LLC (Virginia Beach, VA), Dogwood Anesthesia Providers, LLC (Richmond, VA), American Anesthesiology Of Virginia PC (Falls Church, VA), General Anesthesia Services Inc (Charleston, WV), University Primary Care Practices Inc (Garrettsville, OH) and 4 more organizations, listed in the Medicare section above. 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 Eric Nakanishi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Eric Nakanishi accept?
Health plans from CareSource list Eric Nakanishi 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 Eric Nakanishi affiliated with any hospitals?
According to CMS data, Eric Nakanishi is affiliated with Uh Cleveland Medical Center, Sentara Norfolk General Hospital, Sentara Leigh Hospital, Cjw Medical Center and Riverside Doctors' Hospital Of Williamsburg.
When was this NPI record last updated?
The NPPES record for Eric Nakanishi was last updated on April 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Eric H Nakanishi, MD · NPI 1639193667
Anesthesiology physician in Williamsburg, Virginia. Individual provider, active in the CMS NPPES registry since July 26, 2006.
## Identity
- **NPI:** 1639193667 (Entity type: Individual)
- **Enumerated:** July 26, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 0101241745 (Virginia)
- **Sole proprietor:** No
## Practice location
- **Address:** 1500 COMMONWEALTH AVE, Williamsburg, VA 23185-5229
- **Phone:** (757) 585-2000
## 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:** 9 organizations under Medicare reassignment (form CMS-855R): Smg Anesthesia Specialists LLC (NPI 1518205004, Virginia Beach, VA); Dogwood Anesthesia Providers, LLC (NPI 1982329900, Richmond, VA); American Anesthesiology Of Virginia PC (NPI 1417994872, Falls Church, VA); General Anesthesia Services Inc (NPI 1811997869, Charleston, WV); University Primary Care Practices Inc (NPI 1649309477, Garrettsville, OH); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Medical College Of Ohio, class of 1990
## Record status
- **NPPES last updated:** April 13, 2026
- **Other identifiers:** Medicaid 0882120 (OH); Other P00383077 (OH); Medicaid 0988436 (OH); and 6 more
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Source: [NPI Profile](https://npiprofile.com/npi/1639193667) · Data from the CMS NPPES public registry.