Katherine Blake, D.O.
NPI 1225304322 · Family Medicine Physician · Libertyville, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Blake, D.O. is a Family Medicine Physician provider in Libertyville, IL (NPI 1225304322).
Provider details
- NPI number
- 1225304322
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 125-061735 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
793 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 202 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 164 | $131 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 146 | $93 |
| Automated Urinalysis Test81003 | 65 | $2 |
| Amplifed Dna Or Rna Probe Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antigen87635 | 55 | $49 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 67 | 65 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 47 | 47 |
| Azithromycin | 43 | 43 |
| Prednisone | 38 | 38 |
| Azelastine Hcl | 25 | 23 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 24 | 24 |
| Doxycycline Hyclate | 20 | 20 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$47 across 2 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 (2)
- 635 N Dearborn St Ste 100Chicago, IL 60654-4618Phone: (312) 694-2127Fax: (312) 694-2129
- 6609 W Greenfield AveWest Allis, WI 53214-4958Phone: (414) 257-8577
Registry dates
- Enumerated
- 2012-03-22
- Last updated
- 2026-03-10
- Certified
- 2026-03-10
Frequently asked questions
- What is Katherine Blake's NPI number?
- Katherine Blake's National Provider Identifier (NPI) is 1225304322, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Blake's specialty?
- Katherine Blake is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Blake located?
- Katherine Blake's practice location on file with NPPES is 131 E Park Ave Ste 103, Libertyville, IL 60048-2858.
- What is Katherine Blake's phone number?
- The practice phone number listed in the NPPES registry for Katherine Blake is (847) 984-3290.
- Does Katherine Blake accept Medicare?
- Katherine Blake is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Blake's NPI active?
- Yes — Katherine Blake's NPI (1225304322) is active in the NPPES registry as of the last update on 2026-03-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.