Joseph Houston Greiner, D.D.S.
Endodontics · Anaheim, CA
Joseph Houston Greiner, D.D.S. is an endodontics with a practice address in Anaheim, California, and NPI 1942316203, issued on Aug 21, 2006. Check the license (California 28323, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Joseph Houston Greiner
- Credential
- D.D.S.
- Primary taxonomy
- Endodontics 1223E0200X
- License number
- 28323 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1801 W Romneya Dr, Anaheim, CA 92801
- Phone
- (714) 774-8360
- Enumerated
- Aug 21, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (714) 774-3212
- Entity
- Type 1 · individual
8 nearest endodontics records → All 1,018 in California → Look up another NPI →
Also registered at 1801 W Romneya Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Joseph Houston Greiner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 28323Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% more Medicare Part D claims than the average endodontics in 2024
179 Medicare Part D claims for 111 beneficiaries, against an average of 121 among the 4,119 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 48 claims were for opioids.
Most prescribed
- Chlorhexidine Gluconate83 claims
- Hydrocodone-Acetaminophen43 claims
- Amoxicillin32 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.
Industry payments in 2024: $30.64
1 payment: food and beverage; the largest payer was Sonendo Inc. The 2,057 providers of this specialty with any payment received $49,739.86 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.
Joseph Houston Greiner among 1,018 endodontics records in California
Joseph Houston Greiner, D.D.S. is one of 1,018 endodontics records with a practice address in California. 68% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 73% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 78% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223E0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endodontics providers in California
There are 1,018 endodontics records in California.
All 1,018 in California → Every provider in Anaheim → Endodontics nationwide →
The 8 endodontics records with the nearest ZIP codes
- Kevin Chiang, DDSAnaheim, CA 928011053744177
- Elena Justice, DDSAnaheim, CA 928011750692794
- Sean Lin, D.D.S.Anaheim, CA 928051871778373
- Rahi Rahnama, DDSAnaheim, CA 928081801255773
- Leiza Walia, D.M.D.Tustin, CA 927821144672270
- Nicole Karr, DMDBrea, CA 928211295991263
- Nooshin Katebzaheh, D.D.S., M.S.Brea, CA 928211013043876
- Rachel Lim, DMDBrea, CA 928211033526918
Common questions
What is Joseph Houston Greiner, D.D.S.'s NPI number?
Joseph Houston Greiner, D.D.S.'s National Provider Identifier (NPI) is 1942316203, issued on Aug 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Houston Greiner, D.D.S. located?
The NPPES record lists a practice address at 1801 W Romneya Dr, Anaheim, CA, 92801. Phone: (714) 774-8360. Providers update this record themselves, so call before visiting.
How can I verify Joseph Houston Greiner, D.D.S.'s license?
NPPES lists California license number 28323, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Joseph Houston Greiner, D.D.S. prescribe under Medicare Part D?
In 2024, Joseph Houston Greiner, D.D.S. had 179 Medicare Part D claims for 111 beneficiaries; the average among endodontics prescribers was 121. 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.