Quick answers
- Does Robert L. Mahanti accept Medicare assignment?
- Yes. Medicare's clinician data says Robert L. Mahanti accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Robert L. Mahanti see?
- In 2024, CMS data shows 1,088 Original Medicare patients and 4,323 services for Robert L. Mahanti. This counts Original Medicare only and measures volume, not quality.
- What is Robert L. Mahanti's NPI number?
- 1730146499. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Robert L. Mahanti, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 1,088 |
|---|---|
| Services billed to Medicare | 4,323 |
| Different services or procedures | 65 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient problem focused exam of visual system (92012)526 services
- Removal of cataract with insertion of prosthetic lens (66984)454 services
- Established patient complete exam of visual system (92014)423 services
- Imaging of retina (92134)421 services
- Measurement of corneal curvature and depth of eye (92136)382 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol65%
- High blood pressure61%
- Arthritis42%
- Diabetes26%
- Ischemic heart disease18%
- Osteoporosis17%
Hospitals where Robert L. Mahanti works
Medicare's Facility Affiliation Data lists Robert L. Mahanti at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Flagstaff Medical CenterFlagstaff, AZ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 030023
- Fort Defiance Indian HospitalFt. Defiance, AZ · Acute Care Hospital · Emergency services: listed by Medicare · CCN 030071
- Sage Memorial HospitalGanado, AZ · Critical Access Hospital · Emergency services: not listed by Medicare · CCN 031309
- Verde Valley Medical CenterCottonwood, AZ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 030007
- White Mountain Regional Medical CenterSpringerville, AZ · Critical Access Hospital · Emergency services: listed by Medicare · CCN 031315
Practice locations
Addresses where Robert L. Mahanti is enrolled with Medicare (CMS data updated October 2, 2026).
- 900 N San Francisco StFlagstaff, AZ 86001 (928) 779‑7000
- Corner of Route N12 and N7, Fdihb Inc.Fort Defiance, AZ 86504 (928) 729‑8082
- PO Box, Suite 649Fort Defiance, AZ 86504
Group practices
Medicare enrollment lists Robert L. Mahanti as a member of these groups (CMS data updated October 2, 2026).
- The Fort Defiance Indian Hospital Board, Incorporation151 clinicians in the group
- Northern Arizona Eye Associates2 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Arizona
Clinicians with the same Medicare primary specialty in Arizona — not a recommendation.
Other clinicians in The Fort Defiance Indian Hospital Board, Incorporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wayne State University School Of Medicine |
| Graduation year | 1986 (40 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1730146499 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians