Duncan James Jacobson, DO
Family Medicine Physician · Modesto, CA
Duncan James Jacobson, DO is a family medicine physician with a practice address in Modesto, California, and NPI 1457989345, issued on Mar 28, 2020. Check the license (California 20A20051, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Duncan James Jacobson
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A20051 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1400 Florida Ave Ste 102, Modesto, CA 95350
- Phone
- (209) 576-3528
- Enumerated
- Mar 28, 2020
- Record last updated
- Oct 18, 2023
- Medicare enrollment
- Enrolled (PECOS I20230815002526); accepts Medicare assignment
- Medical or professional school
- Western Un Of Hlth Sciences, Col Of Podiatric Med, 2020
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1400 Florida Ave Ste 102
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Harvir Bains, DOStudent in an Organized Health Care Education/Training Program1497541171
- Shubpreet Bajwa, MDStudent in an Organized Health Care Education/Training Program1447047428
- Sarah BaktvarStudent in an Organized Health Care Education/Training Program1346937786
- Ashwin BalaguruStudent in an Organized Health Care Education/Training Program1881389542
Verify Duncan James Jacobson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A20051Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average family medicine physician in 2024
191 Medicare Part D claims for 88 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Furosemide13 claims
- Atorvastatin Calcium11 claims
- Levofloxacin11 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.
Industry payments in 2024: $32.54
2 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Hospitalists OF Modesto Medical Group IncManteca, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Duncan James Jacobson among 17,133 family medicine physician records in California
Duncan James Jacobson, DO is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 88% of them.
- NPI issued2020 · 88% of these records are older, 9% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2020 · median 2005 among the 10,652 with a school on file
- Record last updated2023 · 58% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
173 family medicine physician records list a practice address in Modesto
They are 173 of the 9,262 NPPES records with a practice address in Modesto, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Modesto → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Eunice Baluyot, MDModesto, CA 953501306828868
- Bradley Blankenship, M.D.Modesto, CA 953501619923810
- Robert Chin, M.D.Modesto, CA 953501508812314
- Juan Del Valle, MDModesto, CA 953501740262229
- Robert Forester, M.D.Modesto, CA 953501619904273
- Otashe Golden, M.D.Modesto, CA 953501508891797
- Richard Heck, M.D.Modesto, CA 953501821034000
- Lisa Hunt, D.O.Modesto, CA 953501467408674
Common questions
What is Duncan James Jacobson, DO's NPI number?
Duncan James Jacobson, DO's National Provider Identifier (NPI) is 1457989345, issued on Mar 28, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Duncan James Jacobson, DO located?
The NPPES record lists a practice address at 1400 Florida Ave Ste 102, Modesto, CA, 95350. Phone: (209) 576-3528. Providers update this record themselves, so call before visiting.
How can I verify Duncan James Jacobson, DO's license?
NPPES lists California license number 20A20051, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Duncan James Jacobson, DO prescribe under Medicare Part D?
In 2024, Duncan James Jacobson, DO had 191 Medicare Part D claims for 88 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.