Doctor profile · Federal record

Dr. William May, M.D.

Ophthalmology Physician (CMS: Ophthalmology) · Ophthalmology Physician · Loma Linda, CA

  • NPI 1700841046
  • Accepts Medicare
  • MIPS 75.9 / 100 · 2023
  • 42 yrs in practice
  • Licensed in 2 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 4 locations .

NPPES Updated May 11, 2026
Primary practice
11370 Anderson St Ste 1800
Loma Linda, CA 923543450
(909) 558-2154
Additional location
10424 S Eastern Ave Ste 100
Henderson, NV 890524293
(702) 733-2020
Additional location
2110 E Flamingo RD Ste 210
Las Vegas, NV 891195193
(702) 733-2020
Show 1 more location
Additional location
2555 Box Canyon Dr
Las Vegas, NV 891280429
(702) 733-2020
Mailing address
2110 E Flamingo RD Ste 210
Las Vegas, NV 891195193

Credentials & registration

NPPES · NUCC
NPI registered
April 2006 — 20 yrs on file
Profile last updated
December 19, 2024
Year of graduation
1984 — 42 yrs since
Specialty taxonomy
207W00000X — NUCC code
State licenses (2)
California #G56891 · Nevada #18490
Medicaid
NV #1700841046

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1700841046. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,954
Distinct HCPCS
10
Medicare allowed
$266,278
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 701 430 $89
99214 Established patient office or other outpatient visit, 30-39 minutes 433 371 $126
68761 Closure of tear duct opening using plug 190 76 $146
92133 Imaging of optic nerve 145 136 $34
92083 Exam of visual field with extended testing 124 117 $62
99204 New patient office or other outpatient visit, 45-59 minutes 122 122 $165
92134 Imaging of retina 76 72 $40
65778 Placement of amniotic membrane on eye surface for wound healing 53 31 $1,277
99212 Established patient office or other outpatient visit, 10-19 minutes 46 41 $56
66821 Removal of recurring cataract in lens capsule using a laser 39 29 $331

In context: peer comparison

Among 9 peers in Loma Linda Ophthalmology Physician, average services per provider: 143. This provider delivers 14× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$953
Transactions
19
Manufacturers
8
Payer (manufacturer) Industry Txns Amount
Bausch & Lomb Americas INC. 8 $452.63
Amgen INC. 3 $171.48
Argenx US, INC. 1 $115.66
Sun Pharmaceutical Industries INC. 1 $66.00
Ani Pharmaceuticals, INC. 2 $60.49
Mallinckrodt Hospital Products INC. 2 $51.17
Sight Sciences, INC. 1 $17.84
Alcon Vision LLC 1 $17.69

By nature of payment

Food and Beverage
$953

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
817
Patients
264
Total drug cost
$169,772
Drug Type Claims Patients Total cost
Latanoprost Generic 289 73 $4,355
Erythromycin (Erythromycin Base) Brand 102 64 $1,053
Restasis (Cyclosporine) Brand 78 29 $89,203
Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) Brand 66 23 $1,171
Lumigan (Bimatoprost) Brand 53 18 $27,292
Timolol Maleate Generic 36 0 $626
Prednisolone Acetate Generic 32 21 $1,672
Xiidra (Lifitegrast) Brand 29 12 $27,257
Fluorometholone Generic 27 13 $1,825
Dorzolamide Hcl Generic 24 0 $847

Frequently asked questions

Auto-generated from federal data
What is Dr. William May's medical specialty?
Dr. William May practices Ophthalmology Physician in Loma Linda, CA.
Where does Dr. William May practice?
Dr. William May practices at 11370 Anderson St Ste 1800, Loma Linda, CA 923543450. Office phone: 9095582154.
What is Dr. William May's NPI?
Dr. William May's National Provider Identifier (NPI) is 1700841046, issued by NPPES.
Does Dr. William May accept Medicare assignment?
Yes. Dr. William May accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William May commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Closure of tear duct opening using plug (HCPCS 68761). Source: CMS Medicare Physician & Other Practitioners file.