Stacey Ruff, D.O.
Stacey Ruff, D.O. is a Geriatric Medicine (Internal Medicine) Physician in Berkley, MI, registered under NPI 1184941841. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 1949 W 12 MILE RD #100, Berkley, MI 48072. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 5101018589 | MI | Geriatric Medicine (Internal Medicine)… primary |
| 5101018589 | MI | Family Medicine Physician |
| 5101018589 | MI | Hospice and Palliative Medicine (Family… |
This provider holds licence 5101018589 issued in MI. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Geriatric Medicine
- PAC ID
- 9537390497
- Enrollment ID
- I20141028001629
Medicare enrolment is recorded as approved under the provider type Practitioner - Geriatric Medicine. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Geriatric Medicine covers
An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital. NUCC Health Care Provider Taxonomy, code 207RG0300X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207RG0300X | Geriatric Medicine (Internal Medicine) Physician Geriatric Medicine | 5101018589 | MI | primary |
| 207Q00000X | Family Medicine Physician | 5101018589 | MI | |
| 207QH0002X | Hospice and Palliative Medicine (Family Medicine) Physician Hospice and Palliative Medicine | 5101018589 | MI |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1184941841 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 21, 2010 |
| Last updated | Oct 23, 2020 |
| Status | Active |
| Sole proprietor | No |
| Credential | D.O. |
| Practice address |
1949 W 12 MILE RD #100 Berkley, MI 48072 (248) 551-1756 Fax (248) 551-9566 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 1 | 8 | 4 | 9 | 4 | 1 | 8 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 7 | 4 | 9 | 4 | 2 | 8 | 8 |
Sum = 69 · next multiple of 10 = 70 · check digit = 1 · actual last digit = 1
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.