Jack F Mason MD Professional Corp, Ukiah: NPI Registry Record and Eye Exam Cost Context
What the registry record says
- NPI number
- 1609811314
- Legal business name
- Jack F Mason MD Professional Corp
- Primary registered specialty
- Optometrist (152W00000X)
- Other registered specialties
- Ophthalmology
- Practice location
- 555 S Dora St
Ukiah, CA 95482-5424 - Phone on the record
- (707) 462-0581
- NPI issued
- June 17, 2006
- Record last updated by the practice
- September 11, 2025
- Registry status
- NPI registry record, active as reported by CMS October 2026
- Metro area
- Ukiah, CA
- County
- Mendocino County
- Location precision
- Street address matched by the US Census geocoder
Reading this record
Beyond the primary code the record carries Ophthalmology, which is the registry's own signal that the practice covers more than routine work. The entry was refreshed in September 2025, putting it among the 4 of 10 Ukiah records updated in 2024 or later, so the contact details are more likely to be current than most of this metro.
For local context: Ukiah holds 9 registered eye care practices in this snapshot, 7 of them optometry and 2 ophthalmology, in ZIP codes including 95482. No other practice in the city took its NPI earlier than this one, which makes it the longest-registered address here. The closest is S. Mack Brown OD Optometric Corporation in Ukiah, 0.1 miles away.
None of this is a licensing check. CMS issues an NPI so a provider can be identified in billing transactions, and states plainly that issuance does not ensure or validate that the holder is licensed or credentialed. The California boards hold the licensing record, and the practice itself is the only source for what it charges today.
Nearest registered practices
12 other registered eye care practices sit within 25 miles of this address, a radius that does not stop at the metro boundary. Inside the Ukiah metro itself there are 10, 8 of them elsewhere in Ukiah. The closest 5 are below, measured straight line between registered addresses.
| Practice | City | Registered as | Distance | Phone on record |
|---|---|---|---|---|
| S. Mack Brown OD Optometric Corporation | Ukiah | Optometry | 0.1 mi | (707) 462-5361 |
| Joe A Vargas O D Professional Corporation | Ukiah | Optometry | 0.2 mi | (707) 462-8363 |
| Gilbreath & Park Optometry Inc | Ukiah | Optometry | 0.6 mi | (707) 462-7040 |
| Adventist Health Physicians Network | Ukiah | Ophthalmology | 0.6 mi | (707) 462-2924 |
| Thomas M. Lucas IV, O.D., Inc. | Ukiah | Optometry | 0.6 mi | (707) 894-2020 |
Distances are straight line between registered practice locations, not driving distance. Records placed at a ZIP centroid rather than a matched street address are excluded from this comparison.
What to expect to pay at an optometry practice like this
The NPI registry holds no prices, so nothing here is a quote from Jack F Mason MD Professional Corp, and independent optometry practices do not publish fee schedules. Customers report paying $120 to $200 at this kind of practice without insurance, which is a reported band rather than a published price. The nearest published figure is $95, the median starting fee across the 1,280 US retail optical stores that print one (30 September 2026), and Medicare pays $149.64 for a comprehensive new-patient exam (CPT 92004). Ask Jack F Mason MD Professional Corp for its self-pay price.
Ask two things when you call: whether the quoted fee includes the refraction, and what a contact lens fitting adds if you wear lenses (the median published contact-lens fee is $129). A comprehensive exam is $80 to $120 at the middle half of stores that print a price. If price is the deciding factor, the 10 practices on the Ukiah page give you the full local field to call around.