Donald Jonker, D.D.S.
NPI 1588022933 · Dentist · Romeoville, IL
Donald Jonker, D.D.S. is a Dentist provider in Romeoville, IL (NPI 1588022933).
Provider details
- NPI number
- 1588022933
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Credential
- D.D.S.
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Dental Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 57 | 44 |
| Clindamycin Hcl | 13 | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 707 Parnassus Ave # D-4000San Francisco, CA 94143-2210Phone: (415) 476-9656
Registry dates
- Enumerated
- 2016-01-31
- Last updated
- 2018-05-18
Frequently asked questions
- What is Donald Jonker's NPI number?
- Donald Jonker's National Provider Identifier (NPI) is 1588022933, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Jonker's specialty?
- Donald Jonker is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is Donald Jonker located?
- Donald Jonker's practice location on file with NPPES is 46 S Weber Rd, Romeoville, IL 60446-4947.
- What is Donald Jonker's phone number?
- The practice phone number listed in the NPPES registry for Donald Jonker is (815) 293-1500.
- Is Donald Jonker's NPI active?
- Yes — Donald Jonker's NPI (1588022933) is active in the NPPES registry as of the last update on 2018-05-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.