Wendy Marder, MD
NPI 1205911815 · Rheumatology Physician · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wendy Marder, MD is a Rheumatology Physician provider in Ann Arbor, MI (NPI 1205911815).
Provider details
- NPI number
- 1205911815
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 4301078420 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
138 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 32 | $16 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 28 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 27 | $89 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 27 | $137 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 31 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxychloroquine Sulfate | 169 | 63 |
| Prednisone | 157 | 57 |
| Methotrexate Sodiumbrand: Methotrexate | 101 | 34 |
| Belimumabbrand: Benlysta | 87 | — |
| Mycophenolate Mofetil | 59 | 17 |
| Tramadol Hcl | 40 | — |
| Cyclobenzaprine Hcl | 40 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-25
- Last updated
- 2012-03-21
Frequently asked questions
- What is Wendy Marder's NPI number?
- Wendy Marder's National Provider Identifier (NPI) is 1205911815, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wendy Marder's specialty?
- Wendy Marder is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Wendy Marder located?
- Wendy Marder's practice location on file with NPPES is 1500 East Medical Center Dr, Ann Arbor, MI 48109-5370.
- What is Wendy Marder's phone number?
- The practice phone number listed in the NPPES registry for Wendy Marder is (734) 647-5900.
- Does Wendy Marder accept Medicare?
- Wendy Marder is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wendy Marder's NPI active?
- Yes — Wendy Marder's NPI (1205911815) is active in the NPPES registry as of the last update on 2012-03-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.