Monroe Seiberling, M.D.
Internal Medicine Physician · Redlands, CA
Monroe Seiberling, M.D. is an internal medicine physician with a practice address in Redlands, California, and NPI 1740237783, issued on May 27, 2006. Check the license (California G18877, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Monroe Seiberling
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G18877 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2 W Fern Ave, Redlands, CA 92373
- Phone
- (909) 793-3311
- Enumerated
- May 27, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (909) 796-4158
- Medicaid ID
- 00G188770 CA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 2 W Fern Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nkeiruka Abanobi, NPWomen's Health Nurse Practitioner1982009007
- Hanan Abu Alnaaj, MDFamily Medicine Physician1235319385
- James Agee, M.D.Urology Physician1851345722
- Arun Agrawal, D.O.Anesthesiology Physician1184677650
- Amanda Aguilera, M.D.Diagnostic Radiology Physician1679782049
- Onyinye Ahamba, M.DHospitalist Physician1164835237
Verify Monroe Seiberling in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G18877Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
24 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Monroe Seiberling among 17,696 internal medicine physician records in California
Monroe Seiberling, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2026 · 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 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
56 internal medicine physician records list a practice address in Redlands
They are 56 of the 2,498 NPPES records with a practice address in Redlands, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Redlands → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Charles Chen, M.D.Redlands, CA 923731124050463
- Jun Chiong, M.D., M.P.H.Redlands, CA 923731598730590
- Regan Douty, D.O.Redlands, CA 923731295766442
- Mamdooh Gayid, MDRedlands, CA 923731477554988
- Junku Kang, MDRedlands, CA 923731265474225
- Casey Kennedy, MDRedlands, CA 923731801839246
- Mohammad Osmani, MDRedlands, CA 923731568479483
- Moses Park, M.D.Redlands, CA 923731528079639
Common questions
What is Monroe Seiberling, M.D.'s NPI number?
Monroe Seiberling, M.D.'s National Provider Identifier (NPI) is 1740237783, issued on May 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Monroe Seiberling, M.D. located?
The NPPES record lists a practice address at 2 W Fern Ave, Redlands, CA, 92373. Phone: (909) 793-3311. Providers update this record themselves, so call before visiting.
How can I verify Monroe Seiberling, M.D.'s license?
NPPES lists California license number G18877, 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 Monroe Seiberling, M.D. prescribe under Medicare Part D?
In 2024, Monroe Seiberling, M.D. had 24 Medicare Part D claims; 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.