Ruth Kozlowski, DO
NPI 1174598270 · Internal Medicine Physician · Commerce Township, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ruth Kozlowski, DO is a Internal Medicine Physician provider in Commerce Township, MI (NPI 1174598270).
Provider details
- NPI number
- 1174598270
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- RK008620 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
583 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 308 | $129 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 222 | $92 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 29 | $130 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 24 | $163 |
Typical Medicare-allowed amounts for these services range $92–$163 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 47 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 197 | 61 |
| Atorvastatin Calcium | 178 | 54 |
| Methotrexate Sodiumbrand: Methotrexate | 122 | 34 |
| Hydroxychloroquine Sulfate | 113 | 28 |
| Simvastatin | 105 | 30 |
| Rosuvastatin Calcium | 99 | 29 |
| Prednisone |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-22
- Last updated
- 2025-12-15
- Certified
- 2025-12-15
Frequently asked questions
- What is Ruth Kozlowski's NPI number?
- Ruth Kozlowski's National Provider Identifier (NPI) is 1174598270, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ruth Kozlowski's specialty?
- Ruth Kozlowski is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ruth Kozlowski located?
- Ruth Kozlowski's practice location on file with NPPES is 2455 Union Lake Rd Ste 101, Commerce Township, MI 48382-3596.
- What is Ruth Kozlowski's phone number?
- The practice phone number listed in the NPPES registry for Ruth Kozlowski is (248) 363-2239.
- Does Ruth Kozlowski accept Medicare?
- Ruth Kozlowski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ruth Kozlowski's NPI active?
- Yes — Ruth Kozlowski's NPI (1174598270) is active in the NPPES registry as of the last update on 2025-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.