Paul J. Gruber, M.D.
Dermatology Physician · Saint Peters, MO
Paul J. Gruber, M.D. is a dermatology physician with a practice address in Saint Peters, Missouri, and NPI 1134547656, issued on Apr 1, 2014. Check the license (Missouri 2019029136, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Paul J. Gruber
- Credential
- M.D.
- Primary taxonomy
- Dermatology Physician 207N00000X
- License numbers
- 2019029136 MO
35.133142 OH
Self-reported in NPPES; status is on the state search - Practice location
- 5700 Mexico RD Ste 14, Saint Peters, MO 63376
- Phone
- (636) 277-0371
- Enumerated
- Apr 1, 2014
- Record last updated
- Aug 16, 2023
- Fax
- (636) 447-4161
- Medicare enrollment
- Enrolled (PECOS I20190822001101); accepts Medicare assignment
- Medical or professional school
- Wright State University Boonshoft School Of Medicine, 2014
- Entity
- Type 1 · individual
Also registered at 5700 Mexico RD Ste 14
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aaron Dwan, MDDermatology Physician1871152967
- Audrey Wilson, APNNurse Practitioner1447081948
- David Winchell, P.A.-CMedical Physician Assistant1871550921
Verify Paul J. Gruber 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 2019029136Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average dermatology physician in 2024
303 Medicare Part D claims for 220 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 21 claims were for opioids.
Most prescribed
- Cephalexin109 claims
- Doxycycline Hyclate77 claims
- Diazepam20 claims
- Gentamicin Sulfate19 claims
- Hydrocodone-Acetaminophen12 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): 83.3 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: $689.54
31 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 10,250 providers of this specialty with any payment received $8,544.61 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
- Forefront Dermatology SCSaint Peters, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dermatology Physician providers in Missouri
There are 278 dermatology physician records in Missouri.
Other dermatology physician records in Missouri
- Mallory Abate, M.D.Saint Louis, MO1710320767
- Benjamin Adams, D.O.Kirksville, MO1376769943
- Hala AdilSaint Louis, MO1235428582
- Anna AiazziSaint Louis, MO1417597923
- Osaigbokan Aihie, MDColumbia, MO1790476554
- Susan Ailor, MDColumbia, MO1245327949
- Milan Anadkat, MDSaint Louis, MO1639267149
- Daphne Anderson, MDSpringfield, MO1144269598
- Frank Anderson, M.D.St Peters, MO1780764852
- Jerome Aronberg, MDClayton, MO1861488926
Common questions
What is Paul J. Gruber, M.D.'s NPI number?
Paul J. Gruber, M.D.'s National Provider Identifier (NPI) is 1134547656, issued on Apr 1, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Paul J. Gruber, M.D. located?
The NPPES record lists a practice address at 5700 Mexico RD Ste 14, Saint Peters, MO, 63376. Phone: (636) 277-0371. Providers update this record themselves, so call before visiting.
How can I verify Paul J. Gruber, M.D.'s license?
NPPES lists Missouri license number 2019029136, 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 Paul J. Gruber, M.D. prescribe under Medicare Part D?
In 2024, Paul J. Gruber, M.D. had 303 Medicare Part D claims for 220 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Paul J. Gruber, M.D.'s MIPS final score?
The 2023 MIPS final score is 83.3 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.