Quick answers
- Does Zubair Ahmad accept Medicare assignment?
- Yes. Medicare's clinician data says Zubair Ahmad 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 Zubair Ahmad see?
- In 2024, CMS data shows 650 Original Medicare patients and 1,689 services for Zubair Ahmad. This counts Original Medicare only and measures volume, not quality.
- What is Zubair Ahmad's NPI number?
- 1962427112. 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 Zubair Ahmad, 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 | 650 |
|---|---|
| Services billed to Medicare | 1,689 |
| Different services or procedures | 14 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)442 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)426 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)239 services
- Dialysis services, 4 or more physician visits per month (20 years or older) (90960)124 services
- Dialysis services, 2-3 physician visits per month (20 years or older) (90961)123 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 blood pressure75%
- High cholesterol75%
- Chronic kidney disease75%
- Diabetes69%
- Heart failure61%
- Ischemic heart disease54%
Hospitals where Zubair Ahmad works
Medicare's Facility Affiliation Data lists Zubair Ahmad 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.
- Ascension St John Jane PhillipsBartlesville, OK · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 370018
- Ascension St John Medical CenterTulsa, OK · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 370114
- Lawton Indian HospitalLawton, OK · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 370170
- Saint Francis Hospital MuskogeeMuskogee, OK · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 370025
- Saint Francis Hospital, IncTulsa, OK · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 370091
Practice locations
Addresses where Zubair Ahmad is enrolled with Medicare (CMS data updated October 2, 2026).
- 2000 S Wheeling Ave, Suite 510Tulsa, OK 74104 (918) 747‑5200
- 3500 State StBartlesville, OK 74006 (918) 331‑1130
Group practices
Medicare enrollment lists Zubair Ahmad as a member of this group (CMS data updated October 2, 2026).
- Nephrology Associates, Inc.25 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Tulsa
Clinicians with the same Medicare primary specialty in Tulsa, OK — not a recommendation.
Other clinicians in Nephrology Associates, Inc.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1999 (27 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1962427112 |
| 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