Zachary Ryan Denham, MD
Anesthesiology Physician · Dover, OH
Zachary Ryan Denham, MD is an anesthesiology physician with a practice address in Dover, Ohio, and NPI 1427552454, issued on Mar 23, 2018. Check the license (Ohio 35.144134, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Zachary Ryan Denham
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 35.144134 OH
Self-reported in NPPES; status is on the state search - Practice location
- 659 Boulevard St, Dover, OH 44622
- Phone
- (330) 343-3311
- Enumerated
- Mar 23, 2018
- Record last updated
- Jun 2, 2026
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 2,068 in Ohio → Look up another NPI →
Also registered at 659 Boulevard St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ashley Addessi-Durnell, R.D., L.D.Registered Dietitian1780940833
- Alexis AlbrechtMedical Physician Assistant1033900253
- Wendy Anderson, RD, LDRegistered Dietitian1205271673
- Sarah Barber, D.O.Obstetrics & Gynecology Physician1396900825
- Brittany Baughman, MDFamily Medicine Physician1407234677
- Durrell BeachyCertified Registered Nurse Anesthetist1699224683
Verify Zachary Ryan Denham in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35.144134Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $13.76
1 payment: food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 17,774 providers of this specialty with any payment received $669.59 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.
Zachary Ryan Denham among 2,068 anesthesiology physician records in Ohio
Zachary Ryan Denham, MD is one of 2,068 anesthesiology physician records with a practice address in Ohio. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 83% of them.
- NPI issued2018 · 83% of these records are older, 14% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 67% of these records are
- Record last updated2026 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in Ohio
There are 2,068 anesthesiology physician records in Ohio.
All 2,068 in Ohio → Every provider in Dover → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Gregory Knapinski, M.D.Dover, OH 446221437392669
- Eugene Koser, MDDover, OH 446221427094291
- Andrew Luxenberg, M.D.Dover, OH 446221447236518
- Easton ShawDover, OH 446221558144204
- William Cleveland, MDCanal Fulton, OH 446141811919368
- Brian Briggs, DOAlliance, OH 446011215907621
- Carl Foster, MDAlliance, OH 446011720014632
- Carl Conrad, MDMassillon, OH 446461821044645
Common questions
What is Zachary Ryan Denham, MD's NPI number?
Zachary Ryan Denham, MD's National Provider Identifier (NPI) is 1427552454, issued on Mar 23, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Zachary Ryan Denham, MD located?
The NPPES record lists a practice address at 659 Boulevard St, Dover, OH, 44622. Phone: (330) 343-3311. Providers update this record themselves, so call before visiting.
How can I verify Zachary Ryan Denham, MD's license?
NPPES lists Ohio license number 35.144134, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.