ARIEL MARIA GRUDA DO
NPI 1790346948
Obstetrics & Gynecology in Troy, MI
About Ariel Maria Gruda Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ARIEL MARIA GRUDA DO (NPI 1790346948) is an individual obstetrics & gynecology provider in Troy, Michigan, licensed in Michigan (5101027376) and active in the NPI registry since June 2019. She is enrolled in Medicare PECOS, is affiliated with Ascension Providence Rochester Hospital, and maintains a secondary practice location in Garden City.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Location 1
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
Ariel Maria Gruda 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
3Medicare enrollment records show Ariel Gruda reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rochester, MI 48307
- Reassigned Medicare billing, Michigan enrollment
- 7 clinicians in this Medicare group
Royal Oak, MI 48073
- Reassigned Medicare billing, Michigan enrollment
- 946 clinicians in this Medicare group
East Lansing, MI 48823
- Reassigned Medicare billing, Michigan enrollment
- 113 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ascension Providence Rochester Hospital
Acute Care Hospitals · Rochester, MIBeaumont Hospital, Troy
Acute Care Hospitals · Troy, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48085 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.
TROY, MI 48085
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 Ariel Gruda's NPI number?
The NPI number for Ariel Gruda is 1790346948. It was assigned to this individual provider in the NPPES registry on June 27, 2019. The provider is also known as Ariel Maria Katsimpalis Do.
Where is Ariel Gruda located?
Ariel Gruda practices at 44201 Dequindre Rd, Troy, MI 48085. The listed phone number is (248) 964-1043.
What is Ariel Gruda's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Ariel Gruda enrolled in Medicare?
Yes. Ariel Gruda 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 Ariel Gruda's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ariel Gruda reassigns Medicare benefits to 3 organizations: Contemporary Obstetrics & Gynecology, PC (Rochester, MI), Beaumont Medical Group Hospital -Based Services (Royal Oak, MI) and Uwh Of Michigan Plc (East Lansing, MI). 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 Ariel Gruda's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ariel Gruda accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 2 other insurers list Ariel Gruda 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 Ariel Gruda affiliated with any hospitals?
According to CMS data, Ariel Gruda is affiliated with Ascension Providence Rochester Hospital and Beaumont Hospital, Troy.
When was this NPI record last updated?
The NPPES record for Ariel Gruda was last updated on October 31, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Ariel Maria Gruda, DO · NPI 1790346948
Obstetrics & Gynecology physician in Troy, Michigan. Individual provider, active in the CMS NPPES registry since June 27, 2019.
## Identity
- **NPI:** 1790346948 (Entity type: Individual)
- **Enumerated:** June 27, 2019
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 5101027376 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 44201 DEQUINDRE RD, Troy, MI 48085-1117
- **Phone:** (248) 964-1043
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Contemporary Obstetrics & Gynecology, PC (NPI 1528152048, Rochester, MI); Beaumont Medical Group Hospital -Based Services (NPI 1427567858, Royal Oak, MI); Uwh Of Michigan Plc (NPI 1982352357, East Lansing, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** October 31, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1790346948) · Data from the CMS NPPES public registry.