Ruth Lynfield, MD
Pediatric Infectious Diseases Physician · Saint Paul, MN
Ruth Lynfield, MD is a pediatric infectious diseases physician with a practice address in Saint Paul, Minnesota, and NPI 1285960302, issued on Oct 23, 2009. Check the license (Minnesota 40312, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- Ruth Lynfield
- Credential
- MD
- Primary taxonomy
- Pediatric Infectious Diseases Physician 2080P0208X
- License number
- 40312 MN
Self-reported in NPPES; status is on the state search - Practice location
- 625 Robert St N, Saint Paul, MN 55155
- Phone
- (651) 201-5414
- Enumerated
- Oct 23, 2009
- Record last updated
- Oct 23, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (651) 201-5743
- Entity
- Type 1 · individual
8 nearest pediatric infectious diseases physician records → All 28 in Minnesota → Look up another NPI →
Also registered at 625 Robert St N
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Lim, MBBCHInfectious Disease Physician1386863520
Verify Ruth Lynfield in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 40312Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average pediatric infectious diseases physician in 2024
47 Medicare Part D claims for 47 beneficiaries, against an average of 165 among the 111 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Naloxone Hcl47 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.
Ruth Lynfield among 28 pediatric infectious diseases physician records in Minnesota
Ruth Lynfield, MD is one of 28 pediatric infectious diseases physician records with a practice address in Minnesota. 36% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 43% of them.
- NPI issued2009 · 43% of these records are older, 43% newer
- In a Medicare fileYes · 36% of these records are
- In the CMS Doctors and Clinicians fileNo · 25% of these records are
- Record last updated2009 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0208X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Infectious Diseases Physician providers in Minnesota
There are 28 pediatric infectious diseases physician records in Minnesota.
All 28 in Minnesota → Every provider in Saint Paul → Pediatric Infectious Diseases Physician nationwide →
The 8 pediatric infectious diseases physician records with the nearest ZIP codes
- Anupama Kalaskar, M.D.Saint Paul, MN 551021386953321
- Ralph Faville, MDSaint Paul, MN 551011689754590
- Emily Schaaf, M.D.Saint Paul, MN 551011013141738
- Kiran Belani, MBBS MDMinneapolis, MN 554041639145758
- Farah Cassis-Ghavami, MDMinneapolis, MN 554041013064807
- Michael Edzards, M.D.Minneapolis, MN 554041306286786
- Nicola O'Connor, MBBSMinneapolis, MN 554041942683255
- William Pomputius, M.D.Minneapolis, MN 554041083611511
Common questions
What is Ruth Lynfield, MD's NPI number?
Ruth Lynfield, MD's National Provider Identifier (NPI) is 1285960302, issued on Oct 23, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Ruth Lynfield, MD located?
The NPPES record lists a practice address at 625 Robert St N, Saint Paul, MN, 55155. Phone: (651) 201-5414. Providers update this record themselves, so call before visiting.
How can I verify Ruth Lynfield, MD's license?
NPPES lists Minnesota license number 40312, 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 Ruth Lynfield, MD prescribe under Medicare Part D?
In 2024, Ruth Lynfield, MD had 47 Medicare Part D claims for 47 beneficiaries; the average among pediatric infectious diseases physician prescribers was 165. 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.