Thomas Merle Dvorak, OD

  • Lake Forest, CA
  • Optometrist
NPI1598899379
Medicare patients, 2024
63
Part D claims, 2024
191
Affiliated sites
3
Medical groups
4
State license
1
Practice address
23600 El Toro Rd, Lake Forest, CA 92630
Practice phone
Call (800) 571-5202
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

National Vision, Inc.

Lake Forest, California

See all 8 affiliations

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Thomas Merle Dvorak is an optometrist in Lake Forest, California

Thomas Dvorak practices at National Vision, Inc. in Lake Forest, California.

Thomas Dvorak's NPI, 1598899379, was assigned on March 15, 2007. Thomas Dvorak graduated from Pacific University - College of Optometry in 1988. Thomas Dvorak holds Texas license 3936T.

NPI and contact details
NPI enumeration date
March 15, 2007
NPI status
Active
Practice phone
(800) 571-5202
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
64
Medical school graduation
1988

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Thomas Merle Dvorak practices at National Vision, Inc. in Lake Forest, California

Thomas Dvorak's primary practice is National Vision, Inc., at 23600 El Toro Rd, Lake Forest, CA 92630 in Orange County. The practice phone is (800) 571-5202.

  • National Vision, Inc.
    23600 El Toro Rd, Lake Forest, CA 92630 · Orange CountyPhone(800) 571-5202

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Thomas Merle Dvorak is affiliated with 4 sites of care and 4 medical groups

Thomas Dvorak's primary practice is National Vision, Inc. in Lake Forest, California. Dmand AI also links Thomas Dvorak to 4 medical groups and 3 group practices and clinics, each named with a free account.

See all 8 affiliations for Thomas Dvorak

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Thomas Merle Dvorak's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Thomas Dvorak practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
National Vision, Inc.Available with a free account
+3 more sites and 4 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Thomas Merle Dvorak is one of 7,206 optometrists in California

Optometrist is Thomas Dvorak's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Thomas Dvorak is licensed in Texas.

Specialties and state licenses

  • Optometrist, TexasPrimaryLicense 3936T · taxonomy 152W00000X

Optometrists near Thomas Dvorak

Counts of optometrists 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

Thomas Merle Dvorak treated 63 Medicare patients in 2024, average age 75

CMS counts 63 Medicare patients who saw Thomas Dvorak in 2024. The largest group is 65 to 74, with 35 patients. 75% of them have high blood pressure, and 67% have high cholesterol. Their average risk score is 1.43, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Thomas Dvorak's median patient age at 69, with 60% women.

Medicare patients, 202463
Average age75
Average risk score1.43

Thomas Dvorak's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Thomas Dvorak's Medicare patients by sex, 2024

  • Women3556%
  • Men2844%

Chronic conditions among Thomas Dvorak's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol67%
  3. Arthritis44%
  4. Diabetes41%
  5. Ischemic heart disease32%
  6. Heart failure25%
  7. Chronic kidney disease21%
  8. Depression21%

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

Thomas Dvorak's patients across all payers

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

Patient panel by age, all payers

Median age 69

Patient panel by sex, all payers

  • Women60%
  • Men38%

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

Thomas Merle Dvorak wrote 191 Medicare Part D claims in 2024

In 2024, Thomas Dvorak wrote 191 Medicare Part D claims for 55 patients. 43% of them were for generic drugs.

Part D claims, 2024191
Part D patients55

Thomas Dvorak's Part D claims by kind of drug, 2024

  • Generic83 claims43%
  • Brand-name108 claims57%

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Thomas Merle Dvorak graduated from Pacific University - College of Optometry

Thomas Dvorak graduated from Pacific University - College of Optometry in 1988.

  1. Medical schoolPacific University - College of Optometry

Source: Dmand AI Professional Profile Data

Sources for Thomas Merle Dvorak'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
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 (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile 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 Thomas Merle Dvorak

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

What is Thomas Merle Dvorak's NPI number?

Thomas Merle Dvorak's NPI number is 1598899379. It was assigned on March 15, 2007, and it is active in the NPI Registry.

What does Thomas Merle Dvorak specialize in?

Thomas Merle Dvorak is an optometrist in Lake Forest, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).

Where does Thomas Merle Dvorak practice?

Thomas Dvorak practices at 23600 El Toro Rd, Lake Forest, CA 92630. Thomas Dvorak's primary practice is National Vision, Inc. in Lake Forest, California. Dmand AI also links Thomas Dvorak to 4 medical groups and 3 group practices and clinics.

What is Thomas Merle Dvorak's office phone number?

The practice phone on file for Thomas Dvorak is (800) 571-5202.

What is Thomas Merle Dvorak's medical license number?

Thomas Dvorak holds Texas license 3936T.

How many Medicare patients does Thomas Merle Dvorak see?

CMS counts 63 Medicare patients who saw Thomas Dvorak in 2024, with an average age of 75.

Where did Thomas Merle Dvorak go to medical school?

Thomas Dvorak graduated from Pacific University - College of Optometry in 1988.

How long has Thomas Merle Dvorak been practicing?

Thomas Dvorak graduated from medical school in 1988, 38 years ago.

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