Karen Whitman, APN
NPI 1912026584 · Family Nurse Practitioner · Chicago, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Whitman, APN is a Family Nurse Practitioner provider in Chicago, IL (NPI 1912026584).
Provider details
- NPI number
- 1912026584
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APN
- Sex
- Female
- Sole proprietor
- No
- License
- RN203734 (TN)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
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
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
97 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) |
|---|---|---|
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 55 | $42 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 42 | $55 |
Typical Medicare-allowed amounts for these services range $42–$55 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (2)
- 1 Westbrook Corporate Ctr Ste 300Westchester, IL 60154-5709Phone: (866) 949-0108Fax: (901) 422-7636
- 2018 Western AveKnoxville, TN 37921-5718Phone: (865) 544-0406Fax: (865) 544-0480
Registry dates
- Enumerated
- 2007-03-28
- Last updated
- 2025-10-28
- Certified
- 2025-10-28
Frequently asked questions
- What is Karen Whitman's NPI number?
- Karen Whitman's National Provider Identifier (NPI) is 1912026584, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Whitman's specialty?
- Karen Whitman is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Whitman located?
- Karen Whitman's practice location on file with NPPES is 4437 S Cicero Ave, Chicago, IL 60632-4333.
- What is Karen Whitman's phone number?
- The practice phone number listed in the NPPES registry for Karen Whitman is (312) 758-1435.
- Does Karen Whitman accept Medicare?
- Karen Whitman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Whitman's NPI active?
- Yes — Karen Whitman's NPI (1912026584) is active in the NPPES registry as of the last update on 2025-10-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.