Quick answers
- Does Hala S. Nahhas accept Medicare assignment?
- Yes. Medicare's clinician data says Hala S. Nahhas 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 Hala S. Nahhas see?
- In 2024, CMS data shows 256 Original Medicare patients and 430 services for Hala S. Nahhas. This counts Original Medicare only and measures volume, not quality.
- What is Hala S. Nahhas's NPI number?
- 1588860639. 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 Hala S. Nahhas, 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 | 256 |
|---|---|
| Services billed to Medicare | 430 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)203 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)64 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)54 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)32 services
- Measurement of brain wave activity (eeg), awake and drowsy (95816)16 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%
- Arthritis57%
- Ischemic heart disease40%
- Anxiety36%
- Diabetes34%
Hospitals where Hala S. Nahhas works
Medicare's Facility Affiliation Data lists Hala S. Nahhas 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.
- Beaumont Hospital - Farmington HillsFarmington Hills, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230151
- Beaumont Hospital Royal OakRoyal Oak, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230130
- Beaumont Hospital, TroyTroy, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230269
- Borgess Medical CenterKalamazoo, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230117
- Trinity Health Oakland HospitalPontiac, MI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 230029
Practice locations
Addresses where Hala S. Nahhas is enrolled with Medicare (CMS data updated October 2, 2026).
- 1541 Gull RdKalamazoo, MI 49048 (269) 381‑7380
- 1701 S Blvd E, Suite B75Rochester Hills, MI 48307 (248) 221‑5170
- 43902 Woodward Ave, Suite 100Bloomfield Hills, MI 48302 (248) 221‑5170
Group practices
Medicare enrollment lists Hala S. Nahhas as a member of this group (CMS data updated October 2, 2026).
- Ascension Medical Group Promed262 clinicians in the group
Specialties
- Neurologyprimary
Other neurologists in Kalamazoo
Clinicians with the same Medicare primary specialty in Kalamazoo, MI — not a recommendation.
Other clinicians in Ascension Medical Group Promed
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Ohio |
| Graduation year | 2001 (25 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588860639 |
| 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