John K. Mwangi, M.D.
Hospitalist Physician · Saint Louis, MO
John K. Mwangi, M.D. is a hospitalist physician with a practice address in Saint Louis, Missouri, and NPI 1699903831, issued on Jun 25, 2009. Check the license (Missouri 2012020694, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- John K. Mwangi
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 2012020694 MO
2009013276 MO
Self-reported in NPPES; status is on the state search - Practice location
- 11133 Dunn RD, Saint Louis, MO 63136
- Phone
- (314) 653-5643
- Enumerated
- Jun 25, 2009
- Record last updated
- Jul 10, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (314) 653-5648
- Medicare enrollment
- Enrolled (PECOS I20120823000747); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 930 in Missouri → Look up another NPI →
Also registered at 11133 Dunn RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John K. Mwangi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2012020694Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% more Medicare Part D claims than the average hospitalist physician in 2024
945 Medicare Part D claims for 84 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 51% of claims.
Most prescribed
- Opsumit159 claims
- Furosemide90 claims
- Uptravi81 claims
- Sildenafil Citrate69 claims
- Albuterol Sulfate Hfa65 claims
- Adempas62 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): 81.6 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).
Industry payments in 2024: $231.98
2 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 7,324 providers of this specialty with any payment received $494.84 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 2 group practices
- Cogent Healthcare OF Missouri IncFenton, MO
- Ssm Health Care GroupSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John K. Mwangi among 930 hospitalist physician records in Missouri
John K. Mwangi, M.D. is one of 930 hospitalist physician records with a practice address in Missouri. 87% 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 28% of them.
- NPI issued2009 · 28% of these records are older, 70% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2003 · median 2014 among the 715 with a school on file
- Record last updated2012 · 25% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
419 hospitalist physician records list a practice address in Saint Louis
They are 419 of the 27,605 NPPES records with a practice address in Saint Louis, and 930 hospitalist physician records in Missouri.
All 930 in Missouri → Every provider in Saint Louis → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
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- Anthony King, DOSaint Louis, MO 631361891100038
- Latha Myla, MDSaint Louis, MO 631361972576890
- Ijeoma Nwelue, M.D.Saint Louis, MO 631361689823395
- Uyen Phan, M.D.Saint Louis, MO 631361427498286
- Huzaifa Quaizar, M.D.Saint Louis, MO 631361326334343
- Savitha Rao, M.D.Saint Louis, MO 631361992989370
Common questions
What is John K. Mwangi, M.D.'s NPI number?
John K. Mwangi, M.D.'s National Provider Identifier (NPI) is 1699903831, issued on Jun 25, 2009. An NPI identifies a provider in billing; it is not a license.
Where is John K. Mwangi, M.D. located?
The NPPES record lists a practice address at 11133 Dunn RD, Saint Louis, MO, 63136. Phone: (314) 653-5643. Providers update this record themselves, so call before visiting.
How can I verify John K. Mwangi, M.D.'s license?
NPPES lists Missouri license number 2012020694, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John K. Mwangi, M.D. prescribe under Medicare Part D?
In 2024, John K. Mwangi, M.D. had 945 Medicare Part D claims for 84 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is John K. Mwangi, M.D.'s MIPS final score?
The 2023 MIPS final score is 81.6 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.