Mario Ray, M.D.
NPI 1326128364 · Hospitalist Physician · Memphis, TN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mario Ray, M.D. is a Hospitalist Physician provider in Memphis, TN (NPI 1326128364).
Provider details
- NPI number
- 1326128364
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 39663 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
606 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 434 | $71 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 54 | $103 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 38 | $97 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 35 | $118 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 33 | $156 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 45 | 44 |
| Gabapentin | 33 | 31 |
| Methocarbamol | 28 | 27 |
| Amlodipine Besylate | 18 | 14 |
| Tamsulosin Hcl | 14 | 12 |
| Atorvastatin Calcium | 12 | 11 |
| Carvedilol | 12 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-16
- Last updated
- 2017-08-14
Frequently asked questions
- What is Mario Ray's NPI number?
- Mario Ray's National Provider Identifier (NPI) is 1326128364, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mario Ray's specialty?
- Mario Ray is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Mario Ray located?
- Mario Ray's practice location on file with NPPES is 877 Jefferson Ave, Memphis, TN 38103-2807.
- What is Mario Ray's phone number?
- The practice phone number listed in the NPPES registry for Mario Ray is (901) 545-8774.
- Does Mario Ray accept Medicare?
- Mario Ray is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mario Ray's NPI active?
- Yes — Mario Ray's NPI (1326128364) is active in the NPPES registry as of the last update on 2017-08-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.