Mahyar Tahbaz, DO
Nephrology (CMS) · Marietta, OH
At a glance
400 Matthew St Ste 207, Marietta, OH 45750-1656
NPPES record updated Feb 2, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
400 Matthew St Ste 207Marietta, OH 45750-1656
Additional reported practice locations
600 18Th St Ste 213Parkersburg, WV 261013236
Phone: 3049171357 401 Corbett St Ste 250
Belleair, FL 337567310
Phone: 3049171357
Education & affiliations
- Medical / professional school
- Nova Southeastern College Of Osteo Medicine
- Graduation year
- 1997
- CMS specialties
- Nephrology
Reported hospital affiliations
- Camden Clark Medical Center Parkersburg, WV
- Marietta Memorial Hospital Marietta, OH
- Morton Plant Hospital Clearwater, FL
- Selby General Hospital Marietta, OH
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $532.34 |
Reporting companies
| Company | Amount |
|---|---|
| ARDELYX, INC. | $148.79 |
| BAYER HEALTHCARE PHARMACEUTICALS INC. | $139.94 |
| TRAVERE THERAPEUTICS, INC. | $99.11 |
| VANTIVE US HEALTHCARE LLC | $59.56 |
| AKEBIA THERAPEUTICS INC | $43.84 |
| OTSUKA AMERICA PHARMACEUTICAL, INC. | $20.74 |
| CALLIDITAS THERAPEUTICS US INC. | $20.36 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Nephrology (CMS)
- Taxonomy code
- 207RN0300X
- Enumeration date
- Jul 28, 2005
- Record updated
- Feb 2, 2026
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- DO
Reported taxonomies and licenses
207R00000X
License reported: 1956 WV
207R00000X
License reported: 34007944T OH
207RN0300X
License reported: OS7780 FL
207RN0300X
License reported: 1956 WV
207RN0300X · Primary
License reported: 34007944T OH
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
400 Matthew St Ste 207Marietta, OH 45750-1656
- Phone
- (304) 917-1357
- Fax
- (304) 485-4466
Mailing address
601 AVERY ST STE 501PARKERSBURG, WV 261015192
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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