Doctor profile · Federal record
Dr. Mary Ann Lloyd, MD
Ophthalmology Physician (CMS: Ophthalmology) · Palo Alto, CA
- NPI 1285743153
- Accepts Medicare
- 41 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
795 El Camino Real
Palo Alto, CA 943012302
(650) 853-2974 - Mailing address
-
325 Distel Cir
Los Altos, CA 940221408
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- March 3, 2020
- Year of graduation
- 1985 — 41 yrs since
- Specialty taxonomy
- 207W00000X — NUCC code
- State license (1)
- California #G65455
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1285743153. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,691
Distinct HCPCS
10
Medicare allowed
$404,763
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 959 | 595 | $156 | |
92133 |
Imaging of optic nerve | 388 | 371 | $45 | |
92083 |
Exam of visual field with extended testing | 360 | 305 | $83 | |
92136 |
Measurement of corneal curvature and depth of eye | 203 | 123 | $47 | |
66984 |
Removal of cataract with insertion of prosthetic lens | 177 | 115 | $667 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 116 | 91 | $111 | |
92081 |
Exam of visual field with limited testing | 94 | 93 | $44 | |
92134 |
Imaging of retina | 88 | 84 | $51 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 85 | 85 | $201 | |
92020 |
Exam of the internal drainage system of eye | 64 | 61 | $35 |
In context: peer comparison
Among 10 peers in Palo Alto Ophthalmology Physician, average services per provider: 263. This provider delivers 10× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
2,356
Patients
892
Total drug cost
$197,019
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Latanoprost | Generic | 584 | 176 | $15,661 |
| Timolol Maleate | Generic | 442 | 135 | $18,378 |
| Prednisolone Acetate | Generic | 234 | 145 | $7,545 |
| Moxifloxacin (Moxifloxacin Hcl) | Brand | 216 | 140 | $6,297 |
| Brimonidine Tartrate | Generic | 210 | 61 | $4,297 |
| Ketorolac Tromethamine | Generic | 171 | 114 | $3,287 |
| Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) | Brand | 116 | 37 | $4,184 |
| Dorzolamide Hcl | Generic | 92 | 27 | $4,244 |
| Vyzulta (Latanoprostene Bunod) | Brand | 56 | 14 | $29,208 |
| Rhopressa (Netarsudil Mesylate) | Brand | 50 | 17 | $26,799 |
Frequently asked questions
What is Dr. Mary Ann Lloyd's medical specialty?
Dr. Mary Ann Lloyd practices Ophthalmology Physician in Palo Alto, CA.
Where does Dr. Mary Ann Lloyd practice?
Dr. Mary Ann Lloyd practices at 795 El Camino Real, Palo Alto, CA 943012302. Office phone: 6508532974.
What is Dr. Mary Ann Lloyd's NPI?
Dr. Mary Ann Lloyd's National Provider Identifier (NPI) is 1285743153, issued by NPPES.
Does Dr. Mary Ann Lloyd accept Medicare assignment?
Yes. Dr. Mary Ann Lloyd accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Ann Lloyd commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Imaging of optic nerve (HCPCS 92133); Exam of visual field with extended testing (HCPCS 92083). Source: CMS Medicare Physician & Other Practitioners file.