Christopher Diethert, FNP-C
NPI 1194015388 · Family Nurse Practitioner · Skokie, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Diethert, FNP-C is a Family Nurse Practitioner provider in Skokie, IL (NPI 1194015388).
Provider details
- NPI number
- 1194015388
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Male
- Sole proprietor
- Yes
- License
- 227011698 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
21 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) |
|---|---|---|
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 21 | $109 |
Typical Medicare-allowed amounts for these services range $109–$109 (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 (1)
- 2003 W Fulton StChicago, IL 60612-2345Phone: (773) 794-8305
Registry dates
- Enumerated
- 2011-04-09
- Last updated
- 2025-07-23
- Certified
- 2025-07-23
Frequently asked questions
- What is Christopher Diethert's NPI number?
- Christopher Diethert's National Provider Identifier (NPI) is 1194015388, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Diethert's specialty?
- Christopher Diethert is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Christopher Diethert located?
- Christopher Diethert's practice location on file with NPPES is 9735 Skokie Blvd, Skokie, IL 60077-1383.
- What is Christopher Diethert's phone number?
- The practice phone number listed in the NPPES registry for Christopher Diethert is (847) 380-8969.
- Does Christopher Diethert accept Medicare?
- Christopher Diethert is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Diethert's NPI active?
- Yes — Christopher Diethert's NPI (1194015388) is active in the NPPES registry as of the last update on 2025-07-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.