Katrina Klaus, D.O.
NPI 1295841427 · Internal Medicine Physician · Wellesley, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katrina Klaus, D.O. is a Internal Medicine Physician provider in Wellesley, MA (NPI 1295841427).
Provider details
- NPI number
- 1295841427
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- RT 1326 (NH)
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
747 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 | 284 | $76 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 110 | $9 |
| Hemoglobin A1c Level83036 | 41 | $10 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 38 | $16 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 34 | $8 |
| Bacterial Colony Count, Urine87086 | 32 | $8 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 63 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 97 | 36 |
| Levothyroxine Sodium | 68 | 17 |
| Metformin Hclbrand: Metformin Hcl Er | 66 | 19 |
| Omeprazole | 62 | 20 |
| Lisinopril | 55 | 19 |
| Famotidine | 52 | 13 |
| Lorazepam |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-21
- Last updated
- 2020-11-16
- Certified
- 2020-11-16
Frequently asked questions
- What is Katrina Klaus's NPI number?
- Katrina Klaus's National Provider Identifier (NPI) is 1295841427, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katrina Klaus's specialty?
- Katrina Klaus is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katrina Klaus located?
- Katrina Klaus's practice location on file with NPPES is 230 Worcester St, Wellesley, MA 02481-5420.
- What is Katrina Klaus's phone number?
- The practice phone number listed in the NPPES registry for Katrina Klaus is (781) 431-5420.
- Does Katrina Klaus accept Medicare?
- Katrina Klaus is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katrina Klaus's NPI active?
- Yes — Katrina Klaus's NPI (1295841427) is active in the NPPES registry as of the last update on 2020-11-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.