Dr. Edward Chaum, MD, PhD

  • Scottsdale, AZ
  • Ophthalmologist
NPI1023075868
Medicare services, 2024
980
Medicare patients, 2024
321
Part D claims, 2024
110
Industry payments
$189,508
Medical groups
8
Practice address
9201 E Mountain View Rd, Scottsdale, AZ 85258
Practice phone
Call (480) 862-1677
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Matrix Medical of New York

Scottsdale, Arizona

See all 9 affiliations

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Dr. Edward Chaum is an ophthalmologist in Scottsdale, Arizona

Dr. Chaum practices at Matrix Medical of New York in Scottsdale, Arizona.

Dr. Chaum's NPI, 1023075868, was assigned on April 26, 2006. Dr. Chaum holds Tennessee license 33959.

NPI and contact details
NPI enumeration date
April 26, 2006
NPI status
Active
Practice phone
(480) 862-1677
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
65
Medical school graduation
1987

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

Dr. Edward Chaum practices at Matrix Medical of New York in Scottsdale, Arizona

Dr. Chaum's primary practice is Matrix Medical of New York, at 9201 E Mountain View Rd, Scottsdale, AZ 85258 in Maricopa County. The practice phone is (480) 862-1677.

  • Matrix Medical of New York
    9201 E Mountain View Rd, Scottsdale, AZ 85258 · Maricopa CountyPhone(480) 862-1677

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

Dr. Edward Chaum is affiliated with 1 site of care and 8 medical groups

Dr. Chaum's primary practice is Matrix Medical of New York in Scottsdale, Arizona. The medical group on file is CVS MinuteClinic. Dmand AI also links Dr. Chaum to 7 more medical groups, each named with a free account.

See all 9 affiliations for Dr. Chaum

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

Dmand AI tracks the EHR system at Dr. Edward Chaum's practice

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

EHR by site
SiteEHR vendor and product
Matrix Medical of New YorkAvailable with a free account
+7 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Edward Chaum is one of 293 ophthalmologists in Arizona

Ophthalmology is Dr. Chaum's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dmand AI has Dr. Chaum's licenses on file in 15 states: Tennessee, Arizona, California, Colorado, Connecticut, Florida, Georgia, Illinois, Kentucky, Massachusetts, Michigan, Mississippi, New Jersey, New York and Pennsylvania.

Specialties and state licenses

  • Ophthalmology, TennesseePrimaryLicense 33959 · taxonomy 207W00000X
  • Arizona licenseLicense 46660
  • California licenseLicense G89425
  • Colorado licenseLicense 52072
  • Connecticut licenseLicense 51992
  • Florida licenseLicense ME115227
  • Georgia licenseLicense 69779
  • Retina specialist (ophthalmology), IllinoisLicense 36131567 · taxonomy 207WX0107X
  • Kentucky licenseLicense 45697
  • Massachusetts licenseLicense 72251
  • Michigan licenseLicense 4301102415
  • Mississippi licenseLicense 20602
  • New Jersey licenseLicense 25MA09294800
  • New York licenseLicense 266450
  • Pennsylvania licenseLicense MD448643

Ophthalmologists near Dr. Chaum

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. Edward Chaum billed Medicare for 980 services in 2024

CMS data shows 980 Medicare services from Dr. Chaum across 6 procedure codes in 2024, for 321 Medicare patients. Medicare paid $56,200 for them.

Medicare services, 2024980
Medicare patients321
Paid by Medicare$56,200
Procedure codes6

Dr. Chaum's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 5022024: 41018%
Tests and treatments
2023: 2732024: 2701%
Surgery
2023: 2902024: 23220%
Drugs given in the office
2023: 1342024: 6849%

Where Dr. Chaum's Medicare services took place, 2024

  • In an office33935%
  • In a facility64165%

Dr. Chaum compared with the Arizona median for ophthalmologists, 2024

  • Dr. Chaum
  • Arizona median
Medicare services
980vs 1,70943% below
Medicare patients
321vs 59146% below
Part D claims
54vs 65492% below

Medians across 293 ophthalmologists in Arizona with Dmand AI profiles that report each measure.

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

Dr. Edward Chaum treated 321 Medicare patients in 2024, average age 75

CMS counts 321 Medicare patients who saw Dr. Chaum in 2024. The largest group is 65 to 74, with 139 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 5% are also on Medicaid. Their average risk score is 1.49, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Chaum's median patient age at 68, with 59% women.

Medicare patients, 2024321
Average age75
Average risk score1.49
Also on Medicaid5%

Dr. Chaum's Medicare patients by age, 2024

Dr. Chaum's Medicare patients by sex, 2024

  • Women17855%
  • Men14345%

Chronic conditions among Dr. Chaum's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis45%
  4. Diabetes42%
  5. Ischemic heart disease34%
  6. Chronic kidney disease29%
  7. Mood disorders26%
  8. Depression25%

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

Dr. Chaum's patients across all payers

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

Patient panel by age, all payers

Median age 68

Patient panel by sex, all payers

  • Women59%
  • Men40%

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

Dr. Edward Chaum wrote 110 Medicare Part D claims in 2024

In 2024, Dr. Chaum wrote 110 Medicare Part D claims for 43 patients. 55% of them were for generic drugs. CMS names the drug for 54 of them, across 2 drugs with 11 or more claims each, at $2,212 in total drug cost. In 2023, CMS named 52 claims across 3 drugs.

Part D claims, 2024110
Drugs named by CMS2
Total drug cost$2,212
Part D patients43

Dr. Chaum's Part D claims by kind of drug, 2024

  • Generic61 claims55%
  • Brand-name49 claims45%

Dr. Chaum'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: 522024: 544%

Drugs named by CMS: 2 in 2024, 3 in 2023.

See all prescribing by Dr. Chaum

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

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Dr. Edward Chaum received $189,508 in industry payments from 2016 to 2024

CMS Open Payments shows 106 general payments to Dr. Chaum from 4 drug and device companies from 2016 to 2024. Consulting fees make up the largest share, 87% of the total. Baxter Healthcare paid the most, $119,517.

General payments to Dr. Chaum by program year, 2016 to 2024

General payments to Dr. Chaum by kind, 2016 to 2024

$189.5Kin total
  • Consulting fees$165,26187%
  • Speaker and faculty fees$17,3699%
  • Honoraria$4,2752%
  • Travel and lodging$1,9241%
  • Food and beverage$6790%

Companies that paid Dr. Chaum the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Chaum

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Edward Chaum'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 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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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 Dr. Edward Chaum

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. Edward Chaum's NPI number?

Dr. Edward Chaum's NPI number is 1023075868. It was assigned on April 26, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Edward Chaum?

Dr. Edward Chaum is an ophthalmologist in Scottsdale, Arizona. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).

Where does Dr. Edward Chaum practice?

Dr. Chaum practices at 9201 E Mountain View Rd, Scottsdale, AZ 85258. Dr. Chaum's primary practice is Matrix Medical of New York in Scottsdale, Arizona. Dmand AI also links Dr. Chaum to 7 medical groups.

What is Dr. Edward Chaum's office phone number?

The practice phone on file for Dr. Chaum is (480) 862-1677.

What is Dr. Edward Chaum's medical license number?

Dr. Chaum holds Tennessee license 33959, one of the licenses on file in 15 states.

Which states has Dr. Edward Chaum been licensed in?

Dmand AI has state licenses on file for Dr. Chaum in Tennessee, Arizona, California, Colorado, Connecticut, Florida, Georgia, Illinois, Kentucky, Massachusetts, Michigan, Mississippi, New Jersey, New York and Pennsylvania.

What medical group is Dr. Edward Chaum part of?

Dr. Chaum is linked to CVS MinuteClinic. Dmand AI links Dr. Chaum to 7 more medical groups.

Does Dr. Edward Chaum accept Medicare?

Yes. CMS data shows Dr. Chaum billed Medicare for 980 services in 2024.

How many Medicare patients does Dr. Edward Chaum see?

CMS counts 321 Medicare patients who saw Dr. Chaum in 2024, with an average age of 75.

What services does Dr. Edward Chaum bill to Medicare?

In 2024, Dr. Chaum's most billed Medicare services were office visit, established patient (99214), eye exam or test (92134) and surgery: eye (67028).

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What drugs does Dr. Edward Chaum prescribe most?

In 2024 Medicare Part D data, Dr. Chaum's most prescribed drugs by claims were Ketorolac Tromethamine and Atropine Sulfate.

Has Dr. Edward Chaum received payments from drug or device companies?

CMS Open Payments shows $189,508 in general payments to Dr. Chaum from 4 companies from 2016 to 2024. The largest total came from Baxter Healthcare.

How long has Dr. Edward Chaum been practicing?

Dr. Chaum graduated from medical school in 1987, 39 years ago.

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