Chester Penn De Jong, M.D.
Family Medicine Physician · Rock Rapids, IA
Chester Penn De Jong, M.D. is a family medicine physician with a practice address in Rock Rapids, Iowa, and NPI 1952484909, issued on Oct 23, 2006. Check the license (Iowa 28191, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Chester Penn De Jong
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 28191 IA
Self-reported in NPPES; status is on the state search - Practice location
- 803 S Greene St, Rock Rapids, IA 51246
- Phone
- (712) 472-3716
- Enumerated
- Oct 23, 2006
- Record last updated
- Dec 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (712) 472-2878
- Medicaid IDs
- 0638700 IA
4075648 IA
0250498 IA
1075648 IA - Medicare enrollment
- Enrolled (PECOS I20060329000734); accepts Medicare assignment
- Medical or professional school
- Sanford School Of Medicine Of University Of South Dakota, 1989
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,336 in Iowa → Look up another NPI →
Also registered at 803 S Greene St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Beta Hamon, MDFamily Medicine Physician1376553040
- Sriranjani Kasinathan, M.D.Family Medicine Physician1518040534
- Kathryn Ranschau, P.A.Physician Assistant1093898066
- David Springer, M.D.Family Medicine Physician1649353681
- Brenda Vis, P.A.Physician Assistant1255414215
Verify Chester Penn De Jong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 28191Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average family medicine physician in 2024
8,063 Medicare Part D claims for 522 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 192 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium505 claims
- Atorvastatin Calcium342 claims
- Metoprolol Succinate291 claims
- Amlodipine Besylate281 claims
- Levothyroxine Sodium254 claims
- Omeprazole252 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 76.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Sanford Medical CenterRock Rapids, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chester Penn De Jong among 2,336 family medicine physician records in Iowa
Chester Penn De Jong, M.D. is one of 2,336 family medicine physician records with a practice address in Iowa. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 16% of them.
- NPI issued2006 · 16% of these records are older, 48% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1989 · median 2006 among the 1,367 with a school on file
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 family medicine physician records list a practice address in Rock Rapids
They are 7 of the 45 NPPES records with a practice address in Rock Rapids, and 2,336 family medicine physician records in Iowa.
All 2,336 in Iowa → Every provider in Rock Rapids → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Kellie Den Hartog, PA-CRock Rapids, IA 512461992261002
- Beta Hamon, MDRock Rapids, IA 512461376553040
- Sarah Heinen, MDRock Rapids, IA 512461538697164
- Sriranjani Kasinathan, M.D.Rock Rapids, IA 512461518040534
- Alex Pfeiffer, DORock Rapids, IA 512461093490088
- David Springer, M.D.Rock Rapids, IA 512461649353681
- Sarah Beucher, MDRock Valley, IA 512471265834618
- Shailesh Desai, MDPrimghar, IA 512451760445423
Common questions
What is Chester Penn De Jong, M.D.'s NPI number?
Chester Penn De Jong, M.D.'s National Provider Identifier (NPI) is 1952484909, issued on Oct 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Chester Penn De Jong, M.D. located?
The NPPES record lists a practice address at 803 S Greene St, Rock Rapids, IA, 51246. Phone: (712) 472-3716. Providers update this record themselves, so call before visiting.
How can I verify Chester Penn De Jong, M.D.'s license?
NPPES lists Iowa license number 28191, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Chester Penn De Jong, M.D. prescribe under Medicare Part D?
In 2024, Chester Penn De Jong, M.D. had 8,063 Medicare Part D claims for 522 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Chester Penn De Jong, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.