William S. Mandrick, William, Mandrick

  • Encino, CA
  • Ophthalmologist
NPI1932270097PAC ID5799787453
Medicare services, 2024
3,264
Medicare patients, 2024
2,179
Part D claims, 2024
708
MIPS score, 2024
73
Affiliated sites
1
Practice address
17310 Ventura Blvd, Encino, CA 91316-3904
Practice phone
Call (818) 728-4260
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Optometric Center of Encino

Physician office · Encino, California

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William S. Mandrick is an ophthalmologist in Encino, California

William Mandrick practices at Optometric Center of Encino in Encino, California.

William Mandrick's NPI, 1932270097, was assigned on November 12, 2006. William Mandrick graduated from David Geffen School of Medicine at UCLA in 1993. William Mandrick holds California license G83686.

NPI and contact details
Medicare PAC ID
5799787453
NPI enumeration date
November 12, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(818) 728-4260
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
59
Medical school graduation
1993

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

William S. Mandrick practices at Optometric Center of Encino in Encino, California

William Mandrick's primary practice is Optometric Center of Encino, at 17310 Ventura Blvd, Encino, CA 91316-3904. The practice phone is (818) 728-4260.

  • Optometric Center of Encino
    17310 Ventura Blvd, Encino, CA 91316-3904Phone(818) 728-4260

Source: Dmand AI Affiliation Data

William S. Mandrick is affiliated with 1 site of care

William Mandrick's primary practice is Optometric Center of Encino in Encino, California.

Optometric Center of EncinoPhysician office · Encino, CaliforniaPrimary

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at William S. Mandrick's practice

Dmand AI tracks the electronic health record (EHR) system at each site where William Mandrick practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Optometric Center of EncinoAvailable with a free account

Source: Dmand AI Technology Install Data

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William S. Mandrick is one of 2,621 ophthalmologists in California

Ophthalmology is William Mandrick's primary specialty in the NPI Registry, under taxonomy code 207W00000X. William Mandrick is board certified in ophthalmology by the American Board of Ophthalmology. William Mandrick is licensed in California.

Specialties and state licenses

  • Ophthalmology, CaliforniaPrimaryLicense G83686 · 1997 to 2026 · taxonomy 207W00000X

Clinical focus

Dmand AI lists age-related macular degeneration, cataract, cataract surgery with lens implant, cold sores or genital herpes, dry eye, glaucoma, glaucoma surgery and secondary membranaous cataract surgery among the conditions William Mandrick treats.

Ophthalmologists near William Mandrick

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

William S. Mandrick billed Medicare for 3,264 services in 2024

CMS data shows 3,264 Medicare services from William Mandrick across 12 procedure codes in 2024, for 2,179 Medicare patients. Medicare paid $283,384 for them.

Medicare services, 20243,264
Medicare patients2,179
Paid by Medicare$283,384
Procedure codes12

William Mandrick's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 2,6952024: 2,8285%
Tests and treatments
2023: 4212024: 37012%
Surgery
2023: 02024: 66

Where William Mandrick's Medicare services took place, 2024

  • In an office45614%
  • In a facility2,80886%

William Mandrick compared with the California median for ophthalmologists, 2024

  • William Mandrick
  • California median
Medicare services
3,264vs 1,0793.0 times
Medicare patients
2,179vs 4215.2 times
Part D claims
656vs 6186% above

Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.

William Mandrick'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.

See all procedures by William Mandrick

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

William S. Mandrick treated 2,179 Medicare patients in 2024, average age 79

CMS counts 2,179 Medicare patients who saw William Mandrick in 2024. The largest group is 75 to 84, with 722 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 91% are also on Medicaid. Their average risk score is 3.05, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts William Mandrick's median patient age at 79, with 57% women.

Medicare patients, 20242,179
Average age79
Average risk score3.05
Also on Medicaid91%

William Mandrick's Medicare patients by age, 2024

William Mandrick's Medicare patients by sex, 2024

  • Women1,28759%
  • Men89241%

Chronic conditions among William Mandrick's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Mood disorders72%
  4. Depression65%
  5. Arthritis64%
  6. Alzheimer's and dementia62%
  7. Diabetes59%
  8. Anxiety57%

Share of Medicare patients with each condition. A patient can have several.

William Mandrick's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 79

Patient panel by sex, all payers

  • Women57%
  • Men43%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

William S. Mandrick wrote 708 Medicare Part D claims in 2024

In 2024, William Mandrick wrote 708 Medicare Part D claims for 136 patients. 50% of them were for generic drugs. CMS names the drug for 656 of them, across 16 drugs with 11 or more claims each, at $113,159 in total drug cost. In 2023, CMS named 651 claims across 13 drugs.

Part D claims, 2024708
Drugs named by CMS16
Total drug cost$113,159
Part D patients136

William Mandrick's Part D claims by kind of drug, 2024

  • Generic352 claims50%
  • Brand-name356 claims50%

William Mandrick'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: 6512024: 6561%

Drugs named by CMS: 16 in 2024, 13 in 2023.

See all prescribing by William Mandrick

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

William S. Mandrick scored 73 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 73 out of 100 for William Mandrick for performance year 2024, reported as part of a group. William Mandrick accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

William Mandrick's MIPS scores, performance year 2024

  • 73of 100Final score
  • 26.7of 100Quality
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Cataract surgery: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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William S. Mandrick has 1 award and honors on record

Dmand AI lists 1 award for William Mandrick.

Awards and honors for William Mandrick

  1. Undated
    • AAO Fellow

Source: Dmand AI Professional Profile Data

William S. Mandrick graduated from David Geffen School of Medicine at UCLA

William Mandrick graduated from David Geffen School of Medicine at UCLA in 1993. William Mandrick is a member of AAO.

  1. Medical schoolDavid Geffen School of Medicine at UCLA
  2. Board certified in ophthalmologyAmerican Board of Ophthalmology

Source: Dmand AI Professional Profile Data

William S. Mandrick accepts plans from 10 insurance carriers

William Mandrick is in network with 10 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Aetna. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Aetna
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare
  • +2 more carriersWith a free account

Plan types William Mandrick accepts, by number of carriers

  1. Medicare7
  2. PPO6
  3. HMO4
  4. POS3
  5. EPO1

Source: Dmand AI Insurance Network Data

Sources for William S. Mandrick's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about William S. Mandrick

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is William S. Mandrick's NPI number?

William S. Mandrick's NPI number is 1932270097. It was assigned on November 12, 2006, and it is active in the NPI Registry.

What does William S. Mandrick specialize in?

William S. Mandrick is an ophthalmologist in Encino, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).

Where does William S. Mandrick practice?

William Mandrick practices at 17310 Ventura Blvd, Encino, CA 91316-3904. William Mandrick's primary practice is Optometric Center of Encino in Encino, California.

What is William S. Mandrick's office phone number?

The practice phone on file for William Mandrick is (818) 728-4260.

What is William S. Mandrick's medical license number?

William Mandrick holds California license G83686.

Does William S. Mandrick accept Medicare?

Yes. CMS data shows William Mandrick billed Medicare for 3,264 services in 2024, and William Mandrick accepts Medicare assignment.

What is William S. Mandrick's MIPS score?

William Mandrick's MIPS final score for performance year 2024 is 73 out of 100, reported as part of a group.

How many Medicare patients does William S. Mandrick see?

CMS counts 2,179 Medicare patients who saw William Mandrick in 2024, with an average age of 79.

Is William S. Mandrick board certified?

Yes. William Mandrick is board certified in ophthalmology by the American Board of Ophthalmology.

What services does William S. Mandrick bill to Medicare?

In 2024, William Mandrick's most billed Medicare services were nursing facility care (99305), nursing facility care (99308) and nursing facility care (99309).

Show 4 more questionsShow fewer questions

Where did William S. Mandrick go to medical school?

William Mandrick graduated from David Geffen School of Medicine at UCLA in 1993.

What drugs does William S. Mandrick prescribe most?

In 2024 Medicare Part D data, William Mandrick's most prescribed drugs by claims were Latanoprost, Dorzolamide-Timolol and Cyclosporine.

How long has William S. Mandrick been practicing?

William Mandrick graduated from medical school in 1993, 33 years ago.

What insurance does William S. Mandrick accept?

William Mandrick is in network with 10 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Aetna. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

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