Theresa Dierker, DO
NPI 1992324545 · Family Medicine Physician · Saint Clair Shores, MI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Theresa Dierker, DO is a Family Medicine Physician provider in Saint Clair Shores, MI (NPI 1992324545).
Provider details
- NPI number
- 1992324545
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 5101027062 (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
6 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
101 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 | 54 | $112 |
| Administration of Influenza Virus VaccineG0008 | 20 | $33 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 14 | $129 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 13 | $169 |
Typical Medicare-allowed amounts for these services range $33–$169 (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 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 69 | 23 |
| Levothyroxine Sodium | 53 | 16 |
| Atorvastatin Calcium | 46 | 22 |
| Losartan Potassium | 34 | 17 |
| Amlodipine Besylate | 32 | 15 |
| Fluticasone Propionate | 28 | 11 |
| Albuterol Sulfate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-04-14
- Last updated
- 2024-02-19
- Certified
- 2024-01-31
Frequently asked questions
- What is Theresa Dierker's NPI number?
- Theresa Dierker's National Provider Identifier (NPI) is 1992324545, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Theresa Dierker's specialty?
- Theresa Dierker is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Theresa Dierker located?
- Theresa Dierker's practice location on file with NPPES is 25631 Little Mack Ave Ste 103, Saint Clair Shores, MI 48081-2100.
- What is Theresa Dierker's phone number?
- The practice phone number listed in the NPPES registry for Theresa Dierker is (586) 443-2333.
- Does Theresa Dierker accept Medicare?
- Theresa Dierker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Theresa Dierker's NPI active?
- Yes — Theresa Dierker's NPI (1992324545) is active in the NPPES registry as of the last update on 2024-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.