Quick answers
- Does Nathan H. Mull Iv accept Medicare assignment?
- Yes. Medicare's clinician data says Nathan H. Mull Iv 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 Nathan H. Mull Iv see?
- In 2024, CMS data shows 237 Original Medicare patients and 822 services for Nathan H. Mull Iv. This counts Original Medicare only and measures volume, not quality.
- What is Nathan H. Mull Iv's NPI number?
- 1588653208. 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 Nathan H. Mull Iv, 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 | 237 |
|---|---|
| Services billed to Medicare | 822 |
| Different services or procedures | 28 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Critical care, first 30-74 minutes (99291)345 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)274 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)36 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)20 services
- Test to examine how well the lungs exchange gases (94729)19 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%
- Ischemic heart disease63%
- Arthritis61%
- COPD59%
- Heart failure59%
Hospitals where Nathan H. Mull Iv works
Medicare's Facility Affiliation Data lists Nathan H. Mull Iv 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.
- Commonspirit-Memorial Hospital-North GeorgiaRinggold, GA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 110236
- Erlanger Medical CenterChattanooga, TN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 440104
- Memorial Healthcare System, IncChattanooga, TN · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 440091
Practice locations
Addresses where Nathan H. Mull Iv is enrolled with Medicare (CMS data updated October 2, 2026).
- 2525 Desales AveChattanooga, TN 37404
- 2525 Desales Ave, Suite 200Chattanooga, TN 37404 (423) 698‑8692
- 5600 Brainerd Rd, Suite 500Chattanooga, TN 37411 (423) 414‑3586
- 709 Walnut StChattanooga, TN 37402 (423) 266‑7721
Group practices
Medicare enrollment lists Nathan H. Mull Iv as a member of this group (CMS data updated October 2, 2026).
- Memorial Health Partners Foundation Inc485 clinicians in the group
Specialties
Other pulmonologists in Chattanooga
Clinicians with the same Medicare primary specialty in Chattanooga, TN — not a recommendation.
Other clinicians in Memorial Health Partners Foundation Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Perelman School Of Med At The University Of Pennsylvania |
| Graduation year | 1984 (42 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588653208 |
| 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