Doctor profile · Federal record
Dr. John Markham, O D
Optometrist (CMS: Optometry) · Prescott, AZ
- NPI 1225094550
- Accepts Medicare
- MIPS 87.7 / 100 · 2023
- 53 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1680 Willow Creek RD
Prescott, AZ 863011108
(928) 778-3950
fax (928) 778-3999 - Mailing address
-
3192 Willow Creek RD
Prescott, AZ 863016610
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- April 20, 2016
- Year of graduation
- 1973 — 53 yrs since
- Specialty taxonomy
- 152W00000X — NUCC code
- State license (1)
- Arizona #142
- Medicaid
- AZ #033176
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1225094550. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
198
Distinct HCPCS
5
Medicare allowed
$13,915
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 85 | 82 | $89 | |
92134 |
Imaging of retina | 36 | 36 | $40 | |
92250 |
Photography of the retina | 31 | 31 | $36 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 24 | 24 | $126 | |
92133 |
Imaging of optic nerve | 22 | 22 | $36 |
In context: peer comparison
Among 8 peers in Prescott Optometrist, average services per provider: 100. This provider delivers 2.0× the peer median.Open Payments
Industry payments received
All-time total
$19
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Lkc Technologies, INC. | 1 | $18.84 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
208
Patients
77
Total drug cost
$10,655
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Latanoprost | Generic | 156 | 61 | $5,265 |
| Timolol Maleate | Generic | 40 | 16 | $533 |
| Travoprost | Generic | 12 | 0 | $4,858 |
Frequently asked questions
What is Dr. John Markham's medical specialty?
Dr. John Markham practices Optometrist in Prescott, AZ.
Where does Dr. John Markham practice?
Dr. John Markham practices at 1680 Willow Creek RD, Prescott, AZ 863011108. Office phone: 9287783950.
What is Dr. John Markham's NPI?
Dr. John Markham's National Provider Identifier (NPI) is 1225094550, issued by NPPES.
Does Dr. John Markham accept Medicare assignment?
Yes. Dr. John Markham accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Markham commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Imaging of retina (HCPCS 92134); Photography of the retina (HCPCS 92250). Source: CMS Medicare Physician & Other Practitioners file.