John R Markham PC
NPI 1689871667 · Optometrist · Prescott, AZ
John R Markham PC is a Optometrist organization in Prescott, AZ (NPI 1689871667).
Provider details
- NPI number
- 1689871667
- Entity type
- Organization
- Primary specialty
- OptometristEye and Vision Services Providers
- Organization subpart
- No
- Authorized official
- John Markham, Owner(928) 778-3950
- License
- 142 (AZ)
Specialties & taxonomies
Eye and Vision Services Providers
Eye and Vision Services Providers
- Ophthalmology Physician207W00000X
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Prescott Vision and Eye Surgery Center
Registry dates
- Enumerated
- 2007-07-02
- Last updated
- 2016-04-01
Frequently asked questions
- What is John R Markham PC's NPI number?
- John R Markham PC's National Provider Identifier (NPI) is 1689871667, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is John R Markham PC?
- John R Markham PC is classified in the NPPES registry as Optometrist (Eye and Vision Services Providers).
- Where is John R Markham PC located?
- John R Markham PC's practice location on file with NPPES is 1680 Willow Creek Rd, Prescott, AZ 86301-1108.
- What is John R Markham PC's phone number?
- The practice phone number listed in the NPPES registry for John R Markham PC is (928) 778-3950.
- Who is the authorized official for John R Markham PC?
- The authorized official listed on John R Markham PC's NPPES record is John Markham, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is John R Markham PC's NPI active?
- Yes — John R Markham PC's NPI (1689871667) is active in the NPPES registry as of the last update on 2016-04-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.