Jaclyn F. Chaffee, M.D.
Internal Medicine Physician · Maplewood, MN
Jaclyn F. Chaffee, M.D. is an internal medicine physician with a practice address in Maplewood, Minnesota, and NPI 1477745198, issued on Aug 16, 2007. Check the license (Minnesota 49121, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Jaclyn F. Chaffee
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 49121 MN
Self-reported in NPPES; status is on the state search - Practice location
- 2165 White Bear Ave N, Maplewood, MN 55109
- Phone
- (651) 523-9800
- Enumerated
- Aug 16, 2007
- Record last updated
- Mar 11, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (651) 523-9801
- Medicare enrollment
- Enrolled (PECOS I20071226000460); accepts Medicare assignment
- Medical or professional school
- Creighton University School Of Medicine, 2004
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,632 in Minnesota → Look up another NPI →
Also registered at 2165 White Bear Ave N
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jaclyn F. Chaffee in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 49121Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average internal medicine physician in 2024
8,095 Medicare Part D claims for 614 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 156 claims were for opioids.
Most prescribed
- Atorvastatin Calcium813 claims
- Amlodipine Besylate433 claims
- Omeprazole393 claims
- Levothyroxine Sodium369 claims
- Lisinopril303 claims
- Metoprolol Succinate257 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.
Bills Medicare through one group practice
- Group Health Plan IncHugo, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jaclyn F. Chaffee among 2,632 internal medicine physician records in Minnesota
Jaclyn F. Chaffee, M.D. is one of 2,632 internal medicine physician records with a practice address in Minnesota. 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 2007, is newer than 42% of them.
- NPI issued2007 · 42% of these records are older, 52% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2004 · median 2008 among the 1,700 with a school on file
- Record last updated2021 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
37 internal medicine physician records list a practice address in Maplewood
They are 37 of the 1,084 NPPES records with a practice address in Maplewood, and 2,632 internal medicine physician records in Minnesota.
All 2,632 in Minnesota → Every provider in Maplewood → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Carlos Adams, MDMaplewood, MN 551091245272608
- Javid Akram, MDMaplewood, MN 551091992734396
- Gail Amundson, MDMaplewood, MN 551091598735540
- Keith Bakke, MDMaplewood, MN 551091386674257
- Suresh Lagalwar, MDMaplewood, MN 551091578593372
- Jelena Licina, MDMaplewood, MN 551091316921687
- Carol Lu, MDMaplewood, MN 551091902986698
- Seema Maddali, MDMaplewood, MN 551091467498972
Common questions
What is Jaclyn F. Chaffee, M.D.'s NPI number?
Jaclyn F. Chaffee, M.D.'s National Provider Identifier (NPI) is 1477745198, issued on Aug 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jaclyn F. Chaffee, M.D. located?
The NPPES record lists a practice address at 2165 White Bear Ave N, Maplewood, MN, 55109. Phone: (651) 523-9800. Providers update this record themselves, so call before visiting.
How can I verify Jaclyn F. Chaffee, M.D.'s license?
NPPES lists Minnesota license number 49121, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jaclyn F. Chaffee, M.D. prescribe under Medicare Part D?
In 2024, Jaclyn F. Chaffee, M.D. had 8,095 Medicare Part D claims for 614 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.