MICHAEL J FRONDORF MD
NPI 1639798804
Anesthesiology in Houston, TX
About Michael J Frondorf Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL J FRONDORF MD (NPI 1639798804) is an individual anesthesiology provider in Houston, Texas, licensed in Indiana (01094136A) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS, is affiliated with Indiana University Health, and maintains a secondary practice location in Indianapolis.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 2
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
Michael J Frondorf 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
2Medicare enrollment records show Michael Frondorf reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 259 clinicians in this Medicare group
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 5,212 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
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.
Indiana University Health
Acute Care Hospitals · Indianapolis, INOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HOUSTON, TX 77030
HOUSTON, TX 77030
HOUSTON, TX 77030
HOUSTON, TX 77030
HOUSTON, TX 77030
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 Michael Frondorf's NPI number?
The NPI number for Michael Frondorf is 1639798804. It was assigned to this individual provider in the NPPES registry on April 8, 2020.
Where is Michael Frondorf located?
Michael Frondorf practices at 6431 Fannin St Suite Msb 5.196, Houston, TX 77030. The listed phone number is (713) 500-6223.
What is Michael Frondorf's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Michael Frondorf enrolled in Medicare?
Yes. Michael Frondorf 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 Michael Frondorf's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Frondorf reassigns Medicare benefits to 2 organizations: Iu Anesthesiology Associates, LLC (Indianapolis, IN) and Iu Health Medical Group, LLC (Indianapolis, IN). 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 Michael Frondorf's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Frondorf accept?
Health plans from CareSource and Cigna Healthcare list Michael Frondorf 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 Michael Frondorf affiliated with any hospitals?
According to CMS data, Michael Frondorf is affiliated with Indiana University Health.
When was this NPI record last updated?
The NPPES record for Michael Frondorf was last updated on December 3, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.
# Michael J Frondorf, MD · NPI 1639798804
Anesthesiology physician in Houston, Texas. Individual provider, active in the CMS NPPES registry since April 8, 2020.
## Identity
- **NPI:** 1639798804 (Entity type: Individual)
- **Enumerated:** April 8, 2020
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 01094136A (Indiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 6431 FANNIN ST, SUITE MSB 5.196, Houston, TX 77030-5389
- **Phone:** (713) 500-6223
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Iu Anesthesiology Associates, LLC (NPI 1285684407, Indianapolis, IN); Iu Health Medical Group, LLC (NPI 1326893777, Indianapolis, IN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** December 3, 2024
- **Other identifiers:** Medicaid 300092596 (IN); Other 1104270374 (IN)
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Source: [NPI Profile](https://npiprofile.com/npi/1639798804) · Data from the CMS NPPES public registry.