Richard Dejong
NPI 1871531103 · Family Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Richard Dejong is a Family Medicine Physician provider in Chicago, IL (NPI 1871531103).
Provider details
- NPI number
- 1871531103
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 036060489 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 51 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 187 | 104 |
| Losartan Potassium | 171 | 83 |
| Amlodipine Besylate | 145 | 73 |
| Levothyroxine Sodium | 143 | 67 |
| Rosuvastatin Calcium | 126 | 56 |
| Metoprolol Succinate | 103 | 46 |
| Metformin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-02
- Last updated
- 2022-10-24
Frequently asked questions
- What is Richard Dejong's NPI number?
- Richard Dejong's National Provider Identifier (NPI) is 1871531103, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Richard Dejong's specialty?
- Richard Dejong is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Richard Dejong located?
- Richard Dejong's practice location on file with NPPES is 5841 S Maryland Ave, Chicago, IL 60637-1443.
- What is Richard Dejong's phone number?
- The practice phone number listed in the NPPES registry for Richard Dejong is (888) 824-0200.
- Does Richard Dejong accept Medicare?
- Richard Dejong is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Richard Dejong's NPI active?
- Yes — Richard Dejong's NPI (1871531103) is active in the NPPES registry as of the last update on 2022-10-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.