HIEN HUY MAI DO
NPI 1881029205
Internal Medicine in Lakeland, FL
About Hien Huy Mai Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HIEN HUY MAI DO (NPI 1881029205) is an individual internal medicine provider in Lakeland, Florida, licensed in Florida (OS12560) and active in the NPI registry since September 2013. He is enrolled in Medicare PECOS, is affiliated with St Josephs Hospital, and is a graduate of Lake Erie College Of Osteopathic Medicine, Erie (2012).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
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
Hien Huy Mai Do 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
7Medicare enrollment records show Hien Mai reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Lakeland, FL 33813
- Reassigned Medicare billing, Florida enrollment
- 98 clinicians in this Medicare group
Tampa, FL 33647
- Reassigned Medicare billing, Florida enrollment
- 26 clinicians in this Medicare group
Tampa, FL 33618
- Reassigned Medicare billing, Florida enrollment
- 903 clinicians in this Medicare group
New Port Richey, FL 34652
- Reassigned Medicare billing, Florida enrollment
- 128 clinicians in this Medicare group
Miami, FL 33126
- Reassigned Medicare billing, Florida enrollment
- 183 clinicians in this Medicare group
Naperville, IL 60565
- Reassigned Medicare billing, Florida enrollment
- 390 clinicians in this Medicare group
Scottsdale, AZ 85254
- Reassigned Medicare billing, Florida enrollment
- 160 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 5
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.
St Josephs Hospital
Acute Care Hospitals · Tampa, FLTampa General Hospital
Acute Care Hospitals · Tampa, FLAdventhealth Tampa
Acute Care Hospitals · Tampa, FLPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 33813 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
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 18
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LAKELAND, FL 33813
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 Hien Mai's NPI number?
The NPI number for Hien Mai is 1881029205. It was assigned to this individual provider in the NPPES registry on September 4, 2013.
Where is Hien Mai located?
Hien Mai practices at 4315 Highland Park Blvd Ste A, Lakeland, FL 33813. The listed phone number is (863) 816-5884.
What is Hien Mai's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Hien Mai enrolled in Medicare?
Yes. Hien Mai 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 Hien Mai's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hien Mai reassigns Medicare benefits to 7 organizations: Advanced Care Hospitalists Pl (Lakeland, FL), Premier Hospitalists Pl (Tampa, FL), Inpatient Consultants Of Florida Inc (Tampa, FL), Baycare Urgent Care, LLC (New Port Richey, FL), Qmc LLC (Miami, FL) and 2 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 Hien Mai's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Hien Mai accept?
Health plans from Oscar Health, Oscar Health Maintenance Organization of Florida and Oscar Insurance Company list Hien Mai 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 Hien Mai affiliated with any hospitals?
According to CMS data, Hien Mai is affiliated with St Josephs Hospital, Tampa General Hospital and Adventhealth Tampa.
When was this NPI record last updated?
The NPPES record for Hien Mai was last updated on February 18, 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.
# Hien Huy Mai, DO · NPI 1881029205
Internal Medicine physician in Lakeland, Florida. Individual provider, active in the CMS NPPES registry since September 4, 2013.
## Identity
- **NPI:** 1881029205 (Entity type: Individual)
- **Enumerated:** September 4, 2013
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** OS12560 (Florida)
- **Sole proprietor:** No
## Practice location
- **Address:** 4315 HIGHLAND PARK BLVD STE A, Lakeland, FL 33813-1639
- **Phone:** (863) 816-5884 · **Fax:** (863) 940-4856
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Advanced Care Hospitalists Pl (NPI 1457389587, Lakeland, FL); Premier Hospitalists Pl (NPI 1396989380, Tampa, FL); Inpatient Consultants Of Florida Inc (NPI 1457511164, Tampa, FL); Baycare Urgent Care, LLC (NPI 1629514070, New Port Richey, FL); Qmc LLC (NPI 1003216391, Miami, FL); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Lake Erie College Of Osteopathic Medicine, Erie, class of 2012
## Record status
- **NPPES last updated:** February 18, 2022
- **Other identifiers:** Other 4765420 (FL); Other HZ145V (FL); Other P02048685 (FL); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1881029205) · Data from the CMS NPPES public registry.