John Grouse, D.D.S.
General Practice Dentistry · Montebello, CA
John Grouse, D.D.S. is a general practice dentistry with a practice address in Montebello, California, and NPI 1275698276, issued on Dec 27, 2006. Check the license (California 32311, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Grouse
- Credential
- D.D.S.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 32311 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1217 W Whittier Blvd, Montebello, CA 90640
- Phone
- (323) 721-1161
- Enumerated
- Dec 27, 2006
- Entity
- Type 1 · individual
Also registered at 1217 W Whittier Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rodolfo Arevalo, M.D.Family Medicine Physician1487692372
- Violkys Bustamante, PA-CFamily Medicine Physician1386755759
- Claudia Ferrer, PABehavior Technician1457859340
- Kevin Jorgensen, PA-CFamily Medicine Physician1265543730
- Liliana Juarez Casillas, PA-CPhysician Assistant1831997725
- Roberto Madrid, MDFamily Medicine Physician1508889585
Verify John Grouse in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 32311Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
35% fewer Medicare Part D claims than the average general practice dentistry in 2024
55 Medicare Part D claims for 20 beneficiaries, against an average of 84 among the 68,591 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Azithromycin12 claims
- Amoxicillin11 claims
- Amoxicillin-Clavulanate Potass11 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.
34 general practice dentistry records list a Montebello practice address
They are 34 of the 728 NPPES records with a Montebello practice address, and 17,740 general practice dentistry records in California.
All 34 in Montebello → All 17,740 in California → Every provider in Montebello →
Other general practice dentistry records in California
- Ronald Aanerud, DDSSan Diego, CA1871752931
- Steven Aaronson, D.D.S.Santa Monica, CA1265455851
- Shahrzad Aarup, DDSPomona, CA1265784367
- Al Abad, DDSSan Jose, CA1104992148
- Erwin Abad, D.D.S.Canoga Park, CA1861590093
- Francine Abad, DDSSan Francisco, CA1942700810
- Maria Abad, D.D.S.Norwalk, CA1215006754
- Mark Ryan Abad, DDSDaly City, CA1770357394
- Sanaz Abadi, D.D.S.Los Angeles, CA1699934026
- Ernesto Abadilla, DDSPalm Desert, CA1508063801
Common questions
What is John Grouse, D.D.S.'s NPI number?
John Grouse, D.D.S.'s National Provider Identifier (NPI) is 1275698276, issued on Dec 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Grouse, D.D.S. located?
The NPPES record lists a practice address at 1217 W Whittier Blvd, Montebello, CA, 90640. Phone: (323) 721-1161. Providers update this record themselves, so call before visiting.
How can I verify John Grouse, D.D.S.'s license?
NPPES lists California license number 32311, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does John Grouse, D.D.S. prescribe under Medicare Part D?
In 2024, John Grouse, D.D.S. had 55 Medicare Part D claims for 20 beneficiaries; the average among general practice dentistry prescribers was 84. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.