DR. HAO HOAN NGUYEN M.D.
NPI 1649581448
Internal Medicine - Infectious Disease in York, PA
About Dr. Hao Hoan Nguyen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HAO HOAN NGUYEN M.D. (NPI 1649581448) is an individual infectious disease provider in York, Pennsylvania, licensed in Pennsylvania (MD456913) and active in the NPI registry since June 2010. He is enrolled in Medicare PECOS, is affiliated with Lansdale Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 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. Hao Hoan Nguyen 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
8Medicare enrollment records show Hao Nguyen reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
York, PA 17403
- Reassigned Medicare billing, Pennsylvania enrollment
- 1,902 clinicians in this Medicare group
York, PA 17403
- Reassigned Medicare billing, Pennsylvania enrollment
- 468 clinicians in this Medicare group
Harrisburg, PA 17101
- Reassigned Medicare billing, Pennsylvania enrollment
- 65 clinicians in this Medicare group
Harrisburg, PA 17109
- Reassigned Medicare billing, Pennsylvania enrollment
- 322 clinicians in this Medicare group
Reading, PA 19608
- Reassigned Medicare billing, Pennsylvania enrollment
- Medicare enrollment name: St Lukes Physician Group Inc
- 2,851 clinicians in this Medicare group
Darby, PA 19023
- Reassigned Medicare billing, Pennsylvania enrollment
- 84 clinicians in this Medicare group
Sellersville, PA 18960
- Reassigned Medicare billing, Pennsylvania enrollment
- 5 clinicians in this Medicare group
Newburgh, NY 12550
- Reassigned Medicare billing, New York enrollment
- 110 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 6
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.
Lansdale Hospital
Acute Care Hospitals · Lansdale, PAGrand View Health
Acute Care Hospitals · Sellersville, PAUpmc Carlisle
Acute Care Hospitals · Carlisle, PAUpmc Pinnacle Hospitals
Acute Care Hospitals · Harrisburg, PASt Mary Medical Center
Acute Care Hospitals · Langhorne, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 17403 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare 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.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
YORK, PA 17403
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 Hao Nguyen's NPI number?
The NPI number for Hao Nguyen is 1649581448. It was assigned to this individual provider in the NPPES registry on June 25, 2010.
Where is Hao Nguyen located?
Hao Nguyen practices at 1001 S George St York Hospital- Medical Education, York, PA 17403. The listed phone number is (717) 851-4751.
What is Hao Nguyen's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Hao Nguyen enrolled in Medicare?
Yes. Hao Nguyen 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 Hao Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hao Nguyen reassigns Medicare benefits to 8 organizations: Pinnacle Health Medical Services (York, PA), Pinnacle Health Regional Physicians (York, PA), Pinnacle Health Observation Services LLC (Harrisburg, PA), Pinnacle Health Hospitalist Services LLC (Harrisburg, PA), St Luke's Physician Group, Inc (Reading, PA) and 3 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 Hao Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Hao Nguyen affiliated with any hospitals?
According to CMS data, Hao Nguyen is affiliated with Lansdale Hospital, Grand View Health, Upmc Carlisle, Upmc Pinnacle Hospitals and St Mary Medical Center.
When was this NPI record last updated?
The NPPES record for Hao Nguyen was last updated on March 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Dr. Hao Hoan Nguyen, M.D. · NPI 1649581448
Infectious Disease physician in York, Pennsylvania. Individual provider, active in the CMS NPPES registry since June 25, 2010.
## Identity
- **NPI:** 1649581448 (Entity type: Individual)
- **Enumerated:** June 25, 2010
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** MD456913 (Pennsylvania)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1001 S GEORGE ST, YORK HOSPITAL- MEDICAL EDUCATION, York, PA 17403-3676
- **Phone:** (717) 851-4751 · **Fax:** (717) 851-5888
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Pinnacle Health Medical Services (NPI 1740936186, York, PA); Pinnacle Health Regional Physicians (NPI 1396265591, York, PA); Pinnacle Health Observation Services LLC (NPI 1316341241, Harrisburg, PA); Pinnacle Health Hospitalist Services LLC (NPI 1023458148, Harrisburg, PA); St Luke's Physician Group, Inc (NPI 1144091802, Reading, PA); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** March 12, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1649581448) · Data from the CMS NPPES public registry.