Ernst Klaus, MB.CHB., FRCPC RHEUM
NPI 1639887771 · Rheumatology Physician · Lutz, FL
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ernst Klaus, MB.CHB., FRCPC RHEUM is a Rheumatology Physician provider in Lutz, FL (NPI 1639887771).
Provider details
- NPI number
- 1639887771
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MB.CHB., FRCPC RHEUM
- Sex
- Male
- Sole proprietor
- No
- License
- ME159520 (FL)
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
3 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
731 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) |
|---|---|---|
| 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 | 268 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 259 | $125 |
| Administration of Non-Hormonal Anti-Neoplastic Chemotherapy Under Skin Or Into Muscle96401 | 85 | $67 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 47 | $164 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 37 | $176 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 158 | 43 |
| Hydroxychloroquine Sulfate | 137 | 63 |
| Methotrexate Sodiumbrand: Methotrexate | 113 | 48 |
| Alendronate Sodium | 89 | 32 |
| Meloxicam | 78 | 33 |
| Leucovorin Calcium | 75 | 36 |
| Leflunomide | 44 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,657 across 169 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
Additional practice locations (1)
- 32615 US Highway 19 N Ste 2Palm Harbor, FL 34684-3176Phone: (727) 789-2784Fax: (727) 785-3537
Registry dates
- Enumerated
- 2022-11-08
- Last updated
- 2024-07-14
- Certified
- 2024-07-14
Frequently asked questions
- What is Ernst Klaus's NPI number?
- Ernst Klaus's National Provider Identifier (NPI) is 1639887771, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ernst Klaus's specialty?
- Ernst Klaus is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Ernst Klaus located?
- Ernst Klaus's practice location on file with NPPES is 2965 Pearson James Place, Lutz, FL 33559.
- What is Ernst Klaus's phone number?
- The practice phone number listed in the NPPES registry for Ernst Klaus is (813) 214-5420.
- Does Ernst Klaus accept Medicare?
- Ernst Klaus is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ernst Klaus's NPI active?
- Yes — Ernst Klaus's NPI (1639887771) is active in the NPPES registry as of the last update on 2024-07-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.