Dr. John William Hallisey, MD
- Medicare services, 2024
- 782
- Medicare patients, 2024
- 189
- Part D claims, 2024
- 349
- Industry payments
- $382
- Affiliated sites
- 2
- Practice address
- 1270 Peach St, San Luis Obispo, CA 93401
- Practice phone
- Call (805) 541-1342
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Limberg Eye Surgery a Medical Corporation
San Luis Obispo, California
Find Dr. Hallisey's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. John William Hallisey is an ophthalmologist in San Luis Obispo, California
Dr. Hallisey practices at Limberg Eye Surgery a Medical Corporation in San Luis Obispo, California.
Dr. Hallisey's NPI, 1467500686, was assigned on January 5, 2007. Dr. Hallisey graduated from UC Davis School of Medicine in 1972. Dr. Hallisey holds California license G25366.
- NPI
- 1467500686NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5193775989
- NPI enumeration date
- January 5, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (805) 541-1342
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 80
- Medical school graduation
- 1972
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John William Hallisey practices at Limberg Eye Surgery a Medical Corporation in San Luis Obispo, California
Dr. Hallisey's primary practice is Limberg Eye Surgery a Medical Corporation, at 1270 Peach St, San Luis Obispo, CA 93401 in San Luis Obispo County. The practice phone is (805) 541-1342.
- Limberg Eye Surgery a Medical Corporation1270 Peach St, San Luis Obispo, CA 93401 · San Luis Obispo CountyPhone(805) 541-1342
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John William Hallisey is affiliated with 3 sites of care and 2 medical groups
Dr. Hallisey's primary practice is Limberg Eye Surgery a Medical Corporation in San Luis Obispo, California. Dmand AI also links Dr. Hallisey to 2 group practices and clinics and 2 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John William Hallisey's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hallisey practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Limberg Eye Surgery a Medical Corporation | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John William Hallisey is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Hallisey's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Hallisey is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Hallisey's licenses on file in 3 states: California, Georgia and South Carolina.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
- Georgia license
- South Carolina license
Clinical focus
Dmand AI lists age-related macular degeneration, cataract, conjunctivitis, dry eye, eye infection or inflammation, eyelid inflammation, glaucoma and glaucoma surgery among the conditions Dr. Hallisey treats.
Ophthalmologists near Dr. Hallisey
Counts of ophthalmologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. John William Hallisey billed Medicare for 782 services in 2024
CMS data shows 782 Medicare services from Dr. Hallisey across 10 procedure codes in 2024, for 189 Medicare patients. Medicare paid $37,634 for them. Every service was in an office.
Dr. Hallisey's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 5612024: 5472%
- Office and hospital visits
- 2023: 2132024: 2193%
- Other services
- 2023: 332024: 1652%
Dr. Hallisey compared with the California median for ophthalmologists, 2024
- Dr. Hallisey
- California median
- Medicare services
- 782vs 1,07928% below
- Medicare patients
- 189vs 42155% below
- Part D claims
- 298vs 61852% below
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Dr. Hallisey's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Hallisey?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hallisey and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John William Hallisey treated 189 Medicare patients in 2024, average age 78
CMS counts 189 Medicare patients who saw Dr. Hallisey in 2024. The largest group is 75 to 84, with 79 patients. 74% of them have high cholesterol, and 73% have high blood pressure. 10% are also on Medicaid. Their average risk score is 0.90, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hallisey's median patient age at 81, with 56% women.
Dr. Hallisey's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Hallisey's Medicare patients by sex, 2024
- Women9450%
- Men9550%
Chronic conditions among Dr. Hallisey's Medicare patients, 2024
- High cholesterol74%
- High blood pressure73%
- Arthritis47%
- Diabetes26%
- Ischemic heart disease23%
- Chronic kidney disease21%
- Cancer19%
- Anxiety17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hallisey's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 81
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John William Hallisey wrote 349 Medicare Part D claims in 2024
In 2024, Dr. Hallisey wrote 349 Medicare Part D claims for 70 patients. 68% of them were for generic drugs. CMS names the drug for 298 of them, across 8 drugs with 11 or more claims each, at $16,067 in total drug cost. In 2023, CMS named 309 claims across 8 drugs.
Dr. Hallisey's Part D claims by kind of drug, 2024
- Generic239 claims68%
- Brand-name110 claims32%
Dr. Hallisey's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3092024: 2984%
Drugs named by CMS: 8 in 2024, 8 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. John William Hallisey takes part in Medicare
Dr. Hallisey accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. John William Hallisey received $382 in industry payments from 2016 to 2025
CMS Open Payments shows 9 general payments to Dr. Hallisey from 5 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 90% of the total. Shire North American Group Inc paid the most, $163.
General payments to Dr. Hallisey by program year, 2016 to 2025
General payments to Dr. Hallisey by kind, 2016 to 2025
- Food and beverage$34490%
- Education$3810%
Companies that paid Dr. Hallisey the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John William Hallisey graduated from UC Davis School of Medicine
Dr. Hallisey graduated from UC Davis School of Medicine in 1972.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. John William Hallisey accepts plans from 15 insurance carriers
Dr. Hallisey is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Humana
- Regence Health Plans
- +7 more carriersWith a free account
Plan types Dr. Hallisey accepts, by number of carriers
- PPO10
- Medicare9
- HMO6
- POS5
- EPO4
Source: Dmand AI Insurance Network Data
Sources for Dr. John William Hallisey's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John William Hallisey
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. John William Hallisey's NPI number?
Dr. John William Hallisey's NPI number is 1467500686. It was assigned on January 5, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. John William Hallisey?
Dr. John William Hallisey is an ophthalmologist in San Luis Obispo, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. John William Hallisey practice?
Dr. Hallisey practices at 1270 Peach St, San Luis Obispo, CA 93401. Dr. Hallisey's primary practice is Limberg Eye Surgery a Medical Corporation in San Luis Obispo, California. Dmand AI also links Dr. Hallisey to 2 group practices and clinics and 2 medical groups.
What is Dr. John William Hallisey's office phone number?
The practice phone on file for Dr. Hallisey is (805) 541-1342.
What is Dr. John William Hallisey's medical license number?
Dr. Hallisey holds California license G25366, one of the licenses on file in 3 states.
Which states has Dr. John William Hallisey been licensed in?
Dmand AI has state licenses on file for Dr. Hallisey in California (1973 to 2026), Georgia (1985 to 1999) and South Carolina (1985 to 1986).
Does Dr. John William Hallisey accept Medicare?
Yes. CMS data shows Dr. Hallisey billed Medicare for 782 services in 2024, and Dr. Hallisey accepts Medicare assignment.
How many Medicare patients does Dr. John William Hallisey see?
CMS counts 189 Medicare patients who saw Dr. Hallisey in 2024, with an average age of 78.
Is Dr. John William Hallisey board certified?
Yes. Dr. Hallisey is board certified in ophthalmology by the American Board of Ophthalmology.
What services does Dr. John William Hallisey bill to Medicare?
In 2024, Dr. Hallisey's most billed Medicare services were eye exam or test (92133), office visit, established patient (99213) and eye exam or test (92083).
Show 5 more questionsShow fewer questions
Where did Dr. John William Hallisey go to medical school?
Dr. Hallisey graduated from UC Davis School of Medicine in 1972.
What drugs does Dr. John William Hallisey prescribe most?
In 2024 Medicare Part D data, Dr. Hallisey's most prescribed drugs by claims were Latanoprost, Dorzolamide-Timolol and Timolol Maleate.
Has Dr. John William Hallisey received payments from drug or device companies?
CMS Open Payments shows $382 in general payments to Dr. Hallisey from 5 companies from 2016 to 2025. The largest total came from Shire North American Group Inc.
How long has Dr. John William Hallisey been practicing?
Dr. Hallisey graduated from medical school in 1972, 54 years ago.
What insurance does Dr. John William Hallisey accept?
Dr. Hallisey is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
Selling to ophthalmology practices?
See ophthalmologists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card