Quick answers
- Does Timothy J. Nickel accept Medicare assignment?
- Yes. Medicare's clinician data says Timothy J. Nickel 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 Timothy J. Nickel see?
- In 2024, CMS data shows 715 Original Medicare patients and 25,406 services for Timothy J. Nickel. This counts Original Medicare only and measures volume, not quality.
- What is Timothy J. Nickel's NPI number?
- 1154302354. 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 Timothy J. Nickel, 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 | 715 |
|---|---|
| Services billed to Medicare | 25,406 |
| Different services or procedures | 52 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Injection, omalizumab, 5 mg (J2357)6,810 services
- Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg (J1569)3,900 services
- Test for allergy using allergenic extract (95004)3,144 services
- Professional service for multiple injections of allergen (95117)1,212 services
- Test for allergy using allergenic extract injected into skin (95024)1,070 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 cholesterol72%
- High blood pressure70%
- Arthritis52%
- Asthma39%
- Ischemic heart disease23%
- Depression23%
Hospitals where Timothy J. Nickel works
Medicare's Facility Affiliation Data lists Timothy J. Nickel 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 Medical CenterTulsa, OK · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 370114
- 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 Timothy J. Nickel is enrolled with Medicare (CMS data updated October 2, 2026).
- 1727 S Utica AveTulsa, OK 74104 (918) 307‑1613
- 9311 S Mingo RdTulsa, OK 74133 (918) 307‑1613
Group practices
Medicare enrollment lists Timothy J. Nickel as a member of this group (CMS data updated October 2, 2026).
- Allergy Clinic of Tulsa Inc10 clinicians in the group
Specialties
- Internal Medicineprimary
- Allergy/Immunologyalso
Other internal medicine doctors in Tulsa
Clinicians with the same Medicare primary specialty in Tulsa, OK — not a recommendation.
Other clinicians in Allergy Clinic of Tulsa Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Kansas School Of Med (kc/wich/sal) |
| Graduation year | 1998 (28 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154302354 |
| 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