NAM X. NGUYEN MD CO
NPI 1639124175
Obstetrics & Gynecology in Dayton, OH
About Nam X. Nguyen Md Co NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NAM X. NGUYEN MD CO (NPI 1639124175) is a healthcare organization registered as an obstetrics & gynecology in Dayton, Ohio and active in the NPI registry since May 2006. The organization lists Kenneth Prunier, Ceo/president, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 2
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Nam X. Nguyen Md Co is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by January 31, 2027
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
812Medicare enrollment records show 812 clinicians reassign Medicare billing to Nam X. Nguyen MD Co, which bills Medicare for the services they deliver. Of these, 420 practice within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 44
Nearest to this location (20)
See all 812Dayton, OH 45409
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Health Specialists Of Dayton Inc's NPI number?
The NPI number for Health Specialists Of Dayton Inc is 1639124175. It was assigned to this organization in the NPPES registry on May 23, 2006. The provider is doing business as Nam X. Nguyen MD Co.
Where is Health Specialists Of Dayton Inc located?
Health Specialists Of Dayton Inc is located at 160 Wyoming St, Dayton, OH 45409. The listed phone number is (937) 224-8890.
What is Health Specialists Of Dayton Inc's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Health Specialists Of Dayton Inc enrolled in Medicare?
Yes. Health Specialists Of Dayton Inc is registered in the Medicare PECOS enrollment system.
When is Health Specialists Of Dayton Inc's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Ohio, Clinic/Group Practice) is due for revalidation by January 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Health Specialists Of Dayton Inc?
According to the CMS Revalidation Reassignment List (October 2026 release), 812 clinicians in 44 Medicare specialties reassign their Medicare billing to Health Specialists Of Dayton Inc. A 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 the clinician's services. The largest specialties are Nurse Practitioner (261), Obstetrics/Gynecology (91) and Neurology (51). Of these, 420 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Health Specialists Of Dayton Inc was last updated on May 5, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Nam X. Nguyen Md Co · NPI 1639124175
Obstetrics & Gynecology organization in Dayton, Ohio. Organization record, active in the CMS NPPES registry since May 23, 2006.
## Identity
- **NPI:** 1639124175 (Entity type: Organization)
- **Enumerated:** May 23, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **Legal business name:** Health Specialists Of Dayton Inc
- **Organization subpart:** Yes (part of Health Specialists Of Dayton Inc)
- **Authorized official:** Kenneth Prunier, CEO/PRESIDENT
## Practice location
- **Address:** 160 WYOMING ST, Dayton, OH 45409-2740
- **Phone:** (937) 224-8890 · **Fax:** (937) 224-0140
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** January 31, 2027 (Non-DME Part B, Ohio, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 812 clinicians in 44 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (261), Obstetrics/Gynecology (91), Neurology (51); 420 practice within 10 miles; [full list](https://npiprofile.com/npi/1639124175/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 5, 2010
- **Other identifiers:** Medicaid 2585135 (OH); Medicare PIN 9353862
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Source: [NPI Profile](https://npiprofile.com/npi/1639124175) · Data from the CMS NPPES public registry.