Stephanie Lazar, MD
NPI 1407234313 · Internal Medicine Physician · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephanie Lazar, MD is a Internal Medicine Physician provider in Ann Arbor, MI (NPI 1407234313).
Provider details
- NPI number
- 1407234313
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 4301107260 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 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
1,100 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) |
|---|---|---|
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 205 | $8 |
| Red Blood Cell Sedimentation Rate, to Detect Inflammation, Non-Automated85651 | 185 | $4 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 169 | $91 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 131 | $127 |
| 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 | 124 | $16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 170 | 51 |
| Prednisone | 122 | 34 |
| Etanerceptbrand: Enbrel Sureclick | 59 | — |
| Adalimumabbrand: Humira(cf) Pen | 53 | — |
| Hydroxychloroquine Sulfate | 48 | 15 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 44 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$454 across 20 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
- 2015-05-12
- Last updated
- 2018-12-26
Frequently asked questions
- What is Stephanie Lazar's NPI number?
- Stephanie Lazar's National Provider Identifier (NPI) is 1407234313, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephanie Lazar's specialty?
- Stephanie Lazar is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephanie Lazar located?
- Stephanie Lazar's practice location on file with NPPES is 1500 East Medical Center Dr, Ann Arbor, MI 48109-5352.
- What is Stephanie Lazar's phone number?
- The practice phone number listed in the NPPES registry for Stephanie Lazar is (734) 936-5582.
- Does Stephanie Lazar accept Medicare?
- Stephanie Lazar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephanie Lazar's NPI active?
- Yes — Stephanie Lazar's NPI (1407234313) is active in the NPPES registry as of the last update on 2018-12-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.