Kathryn Kiehn, M.D.
NPI 1700834348 · Rheumatology Physician · Lake Forest, IL
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kathryn Kiehn, M.D. is a Rheumatology Physician provider in Lake Forest, IL (NPI 1700834348).
Provider details
- NPI number
- 1700834348
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 36133721 (IL)
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
20 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
2,046 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 487 | $134 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 367 | $15 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, 1 Hour Or Less96365 | 289 | $67 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 274 | $9 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, Each Additional Hour96366 | 149 | $21 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 126 | $138 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 211 | 51 |
| Prednisone | 174 | 55 |
| Hydroxychloroquine Sulfate | 166 | 54 |
| Celecoxib | 102 | 28 |
| Meloxicam | 83 | 31 |
| Leflunomide | 75 | 28 |
| Tramadol Hcl | 61 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$86 across 1 record (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)
- 900 N Westmoreland RdSuite 218Lake Forest, IL 60045-1674Phone: (847) 739-2126Fax: (847) 482-0363
Registry dates
- Enumerated
- 2006-05-05
- Last updated
- 2019-02-19
Frequently asked questions
- What is Kathryn Kiehn's NPI number?
- Kathryn Kiehn's National Provider Identifier (NPI) is 1700834348, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kathryn Kiehn's specialty?
- Kathryn Kiehn is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Kathryn Kiehn located?
- Kathryn Kiehn's practice location on file with NPPES is 800 N Westmoreland Rd Ste 201, Lake Forest, IL 60045-1687.
- What is Kathryn Kiehn's phone number?
- The practice phone number listed in the NPPES registry for Kathryn Kiehn is (847) 535-7647.
- Does Kathryn Kiehn accept Medicare?
- Kathryn Kiehn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kathryn Kiehn's NPI active?
- Yes — Kathryn Kiehn's NPI (1700834348) is active in the NPPES registry as of the last update on 2019-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.