Andrea Dreffs, PA-C
NPI 1942452677 · Physician Assistant · Rochester Hills, MI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andrea Dreffs, PA-C is a Physician Assistant provider in Rochester Hills, MI (NPI 1942452677).
Provider details
- NPI number
- 1942452677
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- 5601005258 (MI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,433 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 377 | $5 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 311 | $77 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 186 | $40 |
| Biopsy of Related Skin Growth, First Growth11102 | 169 | $71 |
| Destruction of Skin Growth, 1-14 Growths17110 | 143 | $94 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Triamcinolone Acetonide | 69 | 61 |
| Clobetasol Propionate | 58 | 39 |
| Ketoconazole | 49 | 30 |
| Clindamycin Phosphate | 38 | 18 |
| Hydrocortisone | 26 | 23 |
| Mupirocin | 25 | 21 |
| Fluocinonide | 23 | 15 |
| Fluorouracil | 22 | 21 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$931 across 40 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-10-13
- Last updated
- 2014-08-19
Frequently asked questions
- What is Andrea Dreffs's NPI number?
- Andrea Dreffs's National Provider Identifier (NPI) is 1942452677, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andrea Dreffs's specialty?
- Andrea Dreffs is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Andrea Dreffs located?
- Andrea Dreffs's practice location on file with NPPES is 6700 N Rochester Rd, Rochester Hills, MI 48306-4362.
- What is Andrea Dreffs's phone number?
- The practice phone number listed in the NPPES registry for Andrea Dreffs is (248) 650-1510.
- Does Andrea Dreffs accept Medicare?
- Andrea Dreffs is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andrea Dreffs's NPI active?
- Yes — Andrea Dreffs's NPI (1942452677) is active in the NPPES registry as of the last update on 2014-08-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.