Dr. John Markham O D
About this NPIWhat this record shows.
NPI 1225094550 is registered to Dr. John Markham O D, a Optometrist practising at 1680 Willow Creek Rd in Prescott, Arizona. Optometrist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. John Markham O D has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Medicaid
- 033176AZ
Other
- 153165· Issued by RAN & AMN
- 5858351· Issued by AETNA
- 033176AZ· Issued by AHCCCS
- 866291-9714· Issued by HUMANA
- 1263119AZ· Issued by MERCYCARE
- Z63118AZ· Issued by GROUP MEDICARE - CLINIC
- AZ0142· Issued by EYEMED
- 15220· Issued by AVESIS
- AZ0142· Issued by EYECARE DIRECT
- AZ01170AZ· Issued by MEDICARE SUBMITTER ID - CLINIC
- DM2NNP· Issued by ARIZONA FOUNDATION
- 3Z0277AZ· Issued by HEALTH NET
- NNP12599AZ· Issued by UNIVERSAL HEALTH CARE
Source: NPPES public registry.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20051102000049OptometryAZ
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Dr. John Markham O D accepts. To confirm in-network status with your specific health plan, contact Dr. John Markham O D directly at (928) 778-3950.
Frequently asked
Yes. NPI 1225094550 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Optometrist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (928) 778-3950.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Dr. John Markham O D is a Type-1 individual NPI.