Ralph Walter Niemann, DDS MS
Endodontics · Prince Frederick, MD
Ralph Walter Niemann, DDS MS is an endodontics with a practice address in Prince Frederick, Maryland, and NPI 1669639209, issued on May 21, 2008. Check the license (Maryland 10788, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ralph Walter Niemann
- Credential
- DDS MS
- Primary taxonomy
- Endodontics 1223E0200X
- License number
- 10788 MD
Self-reported in NPPES; status is on the state search - Practice location
- 272 Merrimac Court, Prince Frederick, MD 20678
- Phone
- (410) 535-2505
- Enumerated
- May 21, 2008
- Record last updated
- May 22, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (410) 535-2510
- Entity
- Type 1 · individual
8 nearest endodontics records → All 165 in Maryland → Look up another NPI →
Verify Ralph Walter Niemann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license 10788Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% fewer Medicare Part D claims than the average endodontics in 2024
60 Medicare Part D claims for 48 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.
Most prescribed
- Amoxicillin36 claims
- Clindamycin Hcl17 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.
Ralph Walter Niemann among 165 endodontics records in Maryland
Ralph Walter Niemann, DDS MS is one of 165 endodontics records with a practice address in Maryland. 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 2008, is newer than 54% of them.
- NPI issued2008 · 54% of these records are older, 37% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileNo · 0% of these records are
- Record last updated2014 · 67% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endodontics providers in Maryland
There are 165 endodontics records in Maryland.
All 165 in Maryland → Every provider in Prince Frederick → Endodontics nationwide →
The 8 endodontics records with the nearest ZIP codes
- Cheryl Budd, D.M.D.Lexington Park, MD 206531043264658
- Ali Eghtesadi, DDSLaurel, MD 207071073713640
- Aslim Abdullah, DDSLaurel, MD 207081043247026
- Joseph Herbst, D.D.S.Laurel, MD 207081912900929
- Marc Geballa, DDSBowie, MD 207151710035878
- Iyayi Aigbokhan, DMDBowie, MD 207161982396891
- Donovan Chin, DDSBowie, MD 207161609460427
- Ronald Taylor, DDS MSDBowie, MD 207161881605293
Common questions
What is Ralph Walter Niemann, DDS MS's NPI number?
Ralph Walter Niemann, DDS MS's National Provider Identifier (NPI) is 1669639209, issued on May 21, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Ralph Walter Niemann, DDS MS located?
The NPPES record lists a practice address at 272 Merrimac Court, Prince Frederick, MD, 20678. Phone: (410) 535-2505. Providers update this record themselves, so call before visiting.
How can I verify Ralph Walter Niemann, DDS MS's license?
NPPES lists Maryland license number 10788, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Ralph Walter Niemann, DDS MS prescribe under Medicare Part D?
In 2024, Ralph Walter Niemann, DDS MS had 60 Medicare Part D claims for 48 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.