Abby Siefker, DDS
Dentist · Ottoville, OH
Abby Siefker, DDS is a dentist with a practice address in Ottoville, Ohio, and NPI 1457935959, issued on May 11, 2021. Check the license (Ohio 30.026461, as entered in NPPES) with the Ohio board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Abby Siefker
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License number
- 30.026461 OH
Self-reported in NPPES; status is on the state search - Practice location
- 125 W Main St, Ottoville, OH 45876
- Phone
- (419) 453-3000
- Enumerated
- May 11, 2021
- Record last updated
- May 11, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (419) 453-3001
- Entity
- Type 1 · individual
8 nearest dentist records → All 2,780 in Ohio → Look up another NPI →
Also registered at 125 W Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brendan Siefker, DDSDentist1841089836
Verify Abby Siefker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Ohio board licenses this profession
Search for license 30.026461Check 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% fewer Medicare Part D claims than the average dentist in 2024
45 Medicare Part D claims for 36 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin18 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.
Abby Siefker among 2,780 dentist records in Ohio
Abby Siefker, DDS is one of 2,780 dentist records with a practice address in Ohio. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 81% of them.
- NPI issued2021 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2021 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2 dentist records list a practice address in Ottoville
They are 2 of the 12 NPPES records with a practice address in Ottoville, and 2,780 dentist records in Ohio.
All 2,780 in Ohio → Every provider in Ottoville → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Brendan Siefker, DDSOttoville, OH 458761841089836
- Cynthia Kamin, DDSOttawa, OH 458751194839381
- Michael MottPaulding, OH 458791811334311
- Gregg Glamm, DDSNorth Baltimore, OH 458721568538569
- Isaac Ruhenkamp, DDSNew Bremen, OH 458691770411670
- Eric SchallSt Marys, OH 458851285687541
- James Meiring, DDSMinster, OH 458651700058765
- James Overman, DDSMinster, OH 458651962674929
Common questions
What is Abby Siefker, DDS's NPI number?
Abby Siefker, DDS's National Provider Identifier (NPI) is 1457935959, issued on May 11, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Abby Siefker, DDS located?
The NPPES record lists a practice address at 125 W Main St, Ottoville, OH, 45876. Phone: (419) 453-3000. Providers update this record themselves, so call before visiting.
How can I verify Abby Siefker, DDS's license?
NPPES lists Ohio license number 30.026461, as entered by the provider. Search the Ohio board that licenses this profession; the NPPES record confirms identity only.
How much does Abby Siefker, DDS prescribe under Medicare Part D?
In 2024, Abby Siefker, DDS had 45 Medicare Part D claims for 36 beneficiaries; the average among dentist prescribers was 86. 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.