DR. HONGXEN N HOLLISTER MD
NPI 1841583754
Hospitalist in Riverview, FL
About Dr. Hongxen N Hollister Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HONGXEN N HOLLISTER MD (NPI 1841583754) is an individual hospitalist provider in Riverview, Florida, licensed in Florida (ME119890) and active in the NPI registry since May 2011. She is enrolled in Medicare PECOS, is affiliated with St Josephs Hospital, and is a graduate of University Of South Florida College Of Medicine (2011).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Other Identifiers 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. Hongxen N Hollister 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 Reassignment
Medicare enrollment records show Hongxen Hollister reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Clearwater, FL 33759
- Reassigned Medicare billing, Florida enrollment
- 2,009 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 4
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Josephs Hospital
Acute Care Hospitals · Tampa, FLPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 33578 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
RIVERVIEW, FL 33578
RIVERVIEW, FL 33578
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 Hongxen Hollister's NPI number?
The NPI number for Hongxen Hollister is 1841583754. It was assigned to this individual provider in the NPPES registry on May 25, 2011. The provider is also known as Dr. Hongxen T Nguyen M.D..
Where is Hongxen Hollister located?
Hongxen Hollister practices at 6901 Simmons Loop 4th Floor, Riverview, FL 33578. The listed phone number is (813) 302-8388.
What is Hongxen Hollister's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Hongxen Hollister enrolled in Medicare?
Yes. Hongxen Hollister 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 Hongxen Hollister's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hongxen Hollister reassigns Medicare benefits to Baycare Medical Group, Inc. (Clearwater, FL). 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 Hongxen Hollister's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Hongxen Hollister affiliated with any hospitals?
According to CMS data, Hongxen Hollister is affiliated with St Josephs Hospital.
When was this NPI record last updated?
The NPPES record for Hongxen Hollister was last updated on March 30, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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. Hongxen N Hollister, MD · NPI 1841583754
Hospitalist physician in Riverview, Florida. Individual provider, active in the CMS NPPES registry since May 25, 2011.
## Identity
- **NPI:** 1841583754 (Entity type: Individual)
- **Enumerated:** May 25, 2011
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** ME119890 (Florida)
- **Sole proprietor:** No
## Practice location
- **Address:** 6901 SIMMONS LOOP, 4TH FLOOR, Riverview, FL 33578-9498
- **Phone:** (813) 302-8388 · **Fax:** (813) 302-8453
## 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:** Baycare Medical Group, Inc. (NPI 1043269871, Clearwater, FL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of South Florida College Of Medicine, class of 2011
## Record status
- **NPPES last updated:** March 30, 2022
- **Other identifiers:** Other 14V1V (FL); Medicaid 012209200 (FL)
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Source: [NPI Profile](https://npiprofile.com/npi/1841583754) · Data from the CMS NPPES public registry.