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Dr. David Allen Markman, MD
NPI1508961640PAC ID1557307576
- Medicare services, 2024
- 680
- Medicare patients, 2024
- 248
- Part D claims, 2024
- 1,553
- Publications
- 1
- Industry payments
- $1,228
- Practice address
- 23600 Telo Ave, Torrance, CA 90505
- Practice phone
- Call (310) 543-2611
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Wolstan & Goldberg Eye Associates Inc a Medical Corporaton
Torrance, California
Find Dr. Markman'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. David Allen Markman is an ophthalmologist in Torrance, California
Dr. Markman practices at Wolstan & Goldberg Eye Associates Inc a Medical Corporaton in Torrance, California.
Dr. Markman's NPI, 1508961640, was assigned on September 13, 2006. Dr. Markman graduated from WashU Medicine in 1963. Dr. Markman holds California license C28030.
NPI and contact details
- NPI
- 1508961640NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557307576
- NPI enumeration date
- September 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (310) 543-2611
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 89
- Medical school graduation
- 1963
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Allen Markman practices at Wolstan & Goldberg Eye Associates Inc a Medical Corporaton in Torrance, California
Dr. Markman's primary practice is Wolstan & Goldberg Eye Associates Inc a Medical Corporaton, at 23600 Telo Ave, Torrance, CA 90505 in Los Angeles County. The practice phone is (310) 543-2611.
- Wolstan & Goldberg Eye Associates Inc a Medical Corporaton23600 Telo Ave, Torrance, CA 90505 · Los Angeles CountyPhone(310) 543-2611
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David Allen Markman is affiliated with 3 sites of care and 2 medical groups
Dr. Markman's primary practice is Wolstan & Goldberg Eye Associates Inc a Medical Corporaton in Torrance, California. The medical group on file is Optum - Downtown Los Angeles. Dmand AI also links Dr. Markman to 2 more group practices and clinics and 1 medical group, each named with a free account.
Wolstan & Goldberg Eye Associates Inc a Medical CorporatonPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. David Allen Markman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Markman practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Wolstan & Goldberg Eye Associates Inc a Medical Corporaton | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David Allen Markman is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Markman's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Markman is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Markman's licenses on file in 2 states: California and Florida.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
- Florida license
Clinical focus
Dmand AI lists age-related macular degeneration, cataract, cataract surgery with lens implant, conjunctivitis, dry eye, eye infection or inflammation, eyelid inflammation and glaucoma among the conditions Dr. Markman treats.
Ophthalmologists near Dr. Markman
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. David Allen Markman billed Medicare for 680 services in 2024
CMS data shows 680 Medicare services from Dr. Markman across 11 procedure codes in 2024, for 248 Medicare patients. Medicare paid $52,452 for them.
Medicare services, 2024680
Medicare patients248
Paid by Medicare$52,452
Procedure codes11
Dr. Markman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 6892024: 6397%
- Surgery
- 2023: 212024: 2414%
- Imaging
- 2023: 302024: 1743%
Where Dr. Markman's Medicare services took place, 2024
- In an office65696%
- In a facility244%
Dr. Markman compared with the California median for ophthalmologists, 2024
- Dr. Markman
- California median
- Medicare services
- 680vs 1,07937% below
- Medicare patients
- 248vs 42141% below
- Part D claims
- 1,428vs 6182.3 times
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Dr. Markman'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Markman and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Allen Markman treated 248 Medicare patients in 2024, average age 75
CMS counts 248 Medicare patients who saw Dr. Markman in 2024. The largest group is 65 to 74, with 121 patients. 75% of them have high cholesterol, and 69% have high blood pressure. 14% are also on Medicaid. Their average risk score is 1.08, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Markman's median patient age at 74, with 53% women.
Medicare patients, 2024248
Average age75
Average risk score1.08
Also on Medicaid14%
Dr. Markman's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Markman's Medicare patients by sex, 2024
- Women16466%
- Men8434%
Chronic conditions among Dr. Markman's Medicare patients, 2024
- High cholesterol75%
- High blood pressure69%
- Arthritis46%
- Diabetes39%
- Chronic kidney disease24%
- Ischemic heart disease20%
- Osteoporosis19%
- Cancer17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Markman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women53%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David Allen Markman wrote 1,553 Medicare Part D claims in 2024
In 2024, Dr. Markman wrote 1,553 Medicare Part D claims for 429 patients. 57% of them were for generic drugs. CMS names the drug for 1,428 of them, across 14 drugs with 11 or more claims each, at $99,899 in total drug cost. In 2023, CMS named 3,006 claims across 21 drugs.
Part D claims, 20241,553
Drugs named by CMS14
Total drug cost$99,899
Part D patients429
Dr. Markman's Part D claims by kind of drug, 2024
- Generic885 claims57%
- Brand-name668 claims43%
Dr. Markman'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: 3,0062024: 1,42852%
Drugs named by CMS: 14 in 2024, 21 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
Dr. David Allen Markman ranks in the 73rd percentile for cataract surgery in Medicare
Dr. Markman accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 90 procedures of cataract surgery by Dr. Markman, more than 73% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Markman ranks in Medicare procedure volume
- Cataract surgery
- 73rd percentile90 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. David Allen Markman has 1 publication on record
Dmand AI links 1 paper to Dr. Markman.
Papers1
Recent publications by Dr. Markman
See who Dr. Markman researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Markman works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. David Allen Markman received $1,228 in industry payments from 2016 to 2024
CMS Open Payments shows 56 general payments to Dr. Markman from 15 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 85% of the total. Horizon Pharma plc paid the most, $306.
General payments to Dr. Markman by program year, 2016 to 2024
General payments to Dr. Markman by kind, 2016 to 2024
$1.2Kin total
- Food and beverage$1,04185%
- Speaker and faculty fees$15012%
- Education$383%
Companies that paid Dr. Markman the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Allen Markman graduated from WashU Medicine
Dr. Markman graduated from WashU Medicine in 1963.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. David Allen Markman accepts plans from 7 insurance carriers
Dr. Markman is in network with 7 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Humana. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Michigan
- Humana
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
Plan types Dr. Markman accepts, by number of carriers
- Medicare7
- PPO6
- HMO3
- POS3
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. David Allen Markman'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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. David Allen Markman
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. David Allen Markman's NPI number?
Dr. David Allen Markman's NPI number is 1508961640. It was assigned on September 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David Allen Markman?
Dr. David Allen Markman is an ophthalmologist in Torrance, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. David Allen Markman practice?
Dr. Markman practices at 23600 Telo Ave, Torrance, CA 90505. Dr. Markman's primary practice is Wolstan & Goldberg Eye Associates Inc a Medical Corporaton in Torrance, California. Dmand AI also links Dr. Markman to 2 group practices and clinics and 1 medical group.
What is Dr. David Allen Markman's office phone number?
The practice phone on file for Dr. Markman is (310) 543-2611.
What is Dr. David Allen Markman's medical license number?
Dr. Markman holds California license C28030, one of the licenses on file in 2 states.
Which states has Dr. David Allen Markman been licensed in?
Dmand AI has state licenses on file for Dr. Markman in California (1966 to 2026) and Florida (1973 to 1983).
What medical group is Dr. David Allen Markman part of?
Dr. Markman is linked to Optum - Downtown Los Angeles. Dmand AI links Dr. Markman to 1 more medical group.
Does Dr. David Allen Markman accept Medicare?
Yes. CMS data shows Dr. Markman billed Medicare for 680 services in 2024, and Dr. Markman accepts Medicare assignment.
How many Medicare patients does Dr. David Allen Markman see?
CMS counts 248 Medicare patients who saw Dr. Markman in 2024, with an average age of 75.
Is Dr. David Allen Markman board certified?
Yes. Dr. Markman is board certified in ophthalmology by the American Board of Ophthalmology.
Show 7 more questionsShow fewer questions
What services does Dr. David Allen Markman bill to Medicare?
In 2024, Dr. Markman's most billed Medicare services were eye exam or test (92012), eye exam or test (92014) and eye exam or test (92083).
Where did Dr. David Allen Markman go to medical school?
Dr. Markman graduated from WashU Medicine in 1963.
What drugs does Dr. David Allen Markman prescribe most?
In 2024 Medicare Part D data, Dr. Markman's most prescribed drugs by claims were Latanoprost, Dorzolamide-Timolol and Timolol Maleate.
Has Dr. David Allen Markman received payments from drug or device companies?
CMS Open Payments shows $1,228 in general payments to Dr. Markman from 15 companies from 2016 to 2024. The largest total came from Horizon Pharma plc.
How long has Dr. David Allen Markman been practicing?
Dr. Markman graduated from medical school in 1963, 63 years ago.
Does Dr. David Allen Markman do research?
Dmand AI links 1 publication to Dr. Markman.
What insurance does Dr. David Allen Markman accept?
Dr. Markman is in network with 7 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Humana. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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