John Garfield Polkinghorne, DDS
Dentist · Edmond, OK
John Garfield Polkinghorne, DDS is a dentist with a practice address in Edmond, Oklahoma, and NPI 1215139639, issued on Jun 5, 2007. Check the license (Oklahoma 4626, as entered in NPPES) with the Oklahoma board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Garfield Polkinghorne
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License number
- 4626 OK
Self-reported in NPPES; status is on the state search - Practice location
- 601 N Kelly, Edmond, OK 73003
- Phone
- (405) 341-4400
- Enumerated
- Jun 5, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (405) 359-9400
- Entity
- Type 1 · individual
8 nearest dentist records → All 1,058 in Oklahoma → Look up another NPI →
Verify John Garfield Polkinghorne in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oklahoma board licenses this profession
Search for license 4626Check 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 dentist in 2024
56 Medicare Part D claims for 25 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
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.
Industry payments in 2024: $328.28
5 payments; by number, the most common kind was food and beverage; the largest payer was Revance Therapeutics, Inc. The 31,974 providers of this specialty with any payment received $540.36 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.
John Garfield Polkinghorne among 1,058 dentist records in Oklahoma
John Garfield Polkinghorne, DDS is one of 1,058 dentist records with a practice address in Oklahoma. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 24% of them.
- NPI issued2007 · 24% of these records are older, 65% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 63% 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 Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
35 dentist records list a practice address in Edmond
They are 35 of the 3,849 NPPES records with a practice address in Edmond, and 1,058 dentist records in Oklahoma.
All 1,058 in Oklahoma → Every provider in Edmond → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Michael Alspaugh, D.D.S.Edmond, OK 730031063567022
- Donald Ashburn, D.D.S.Edmond, OK 730031962540336
- Christian Contreras, DDSEdmond, OK 730031215508080
- Blaire Ersteniuk, DDS MSEdmond, OK 730031962726851
- Deren Flesher, D.D.S.Edmond, OK 730031285070805
- Michael Hansen, D.D.S.Edmond, OK 730031255349312
- Mary Klug, DDSEdmond, OK 730031427540368
- Steffan Sigler, DDSEdmond, OK 730031629426051
Common questions
What is John Garfield Polkinghorne, DDS's NPI number?
John Garfield Polkinghorne, DDS's National Provider Identifier (NPI) is 1215139639, issued on Jun 5, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Garfield Polkinghorne, DDS located?
The NPPES record lists a practice address at 601 N Kelly, Edmond, OK, 73003. Phone: (405) 341-4400. Providers update this record themselves, so call before visiting.
How can I verify John Garfield Polkinghorne, DDS's license?
NPPES lists Oklahoma license number 4626, as entered by the provider. Search the Oklahoma board that licenses this profession; the NPPES record confirms identity only.
How much does John Garfield Polkinghorne, DDS prescribe under Medicare Part D?
In 2024, John Garfield Polkinghorne, DDS had 56 Medicare Part D claims for 25 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.