Claudiu Gherlan, MD
NPI 1639134216 · Internal Medicine Physician · Madison, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Claudiu Gherlan, MD is a Internal Medicine Physician provider in Madison, WI (NPI 1639134216).
Provider details
- NPI number
- 1639134216
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 45470-020 (WI)
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
734 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 163 | $69 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 159 | $91 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 104 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 69 | $122 |
| Hemoglobin A1c Level83036 | 42 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 25 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 98 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 308 | 113 |
| Omeprazole | 157 | 56 |
| Apixabanbrand: Eliquis | 154 | 37 |
| Lisinopril | 141 | 58 |
| Amlodipine Besylate | 139 | 54 |
| Tamsulosin Hcl | 131 | 45 |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-18
- Last updated
- 2012-10-25
Frequently asked questions
- What is Claudiu Gherlan's NPI number?
- Claudiu Gherlan's National Provider Identifier (NPI) is 1639134216, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Claudiu Gherlan's specialty?
- Claudiu Gherlan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Claudiu Gherlan located?
- Claudiu Gherlan's practice location on file with NPPES is 8202 Excelsior Dr, Madison, WI 53717-1906.
- What is Claudiu Gherlan's phone number?
- The practice phone number listed in the NPPES registry for Claudiu Gherlan is (608) 831-1766.
- Does Claudiu Gherlan accept Medicare?
- Claudiu Gherlan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Claudiu Gherlan's NPI active?
- Yes — Claudiu Gherlan's NPI (1639134216) is active in the NPPES registry as of the last update on 2012-10-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.