Dr. Ron Gutmark, MD

  • Northridge, CA
  • Ophthalmologist
NPI1609189893PAC ID6305095282
Medicare services, 2024
55
Medicare patients, 2024
55
Part D claims, 2024
2,865
Publications
6
Industry payments
$4,145
Practice address
18250 W Roscoe Blvd, Northridge, CA 91325
Practice phone
Call (818) 265-7777
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Specialty Eye Care Medical Center, Inc.

Northridge, California

See all 5 affiliations

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Dr. Ron Gutmark is an ophthalmologist in Northridge, California

Dr. Gutmark practices at Specialty Eye Care Medical Center, Inc. in Northridge, California.

Dr. Gutmark's NPI, 1609189893, was assigned on July 16, 2010. Dr. Gutmark graduated from The Johns Hopkins University School of Medicine in 2010. Dr. Gutmark's California license number on file is A129409.

NPI and contact details
Medicare PAC ID
6305095282
NPI enumeration date
July 16, 2010
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(818) 265-7777
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
42
Medical school graduation
2010

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

Dr. Ron Gutmark practices at Specialty Eye Care Medical Center, Inc. in Northridge, California

Dr. Gutmark's primary practice is Specialty Eye Care Medical Center, Inc., at 18250 W Roscoe Blvd, Northridge, CA 91325 in Los Angeles County. The practice phone is (818) 265-7777.

  • Specialty Eye Care Medical Center, Inc.
    18250 W Roscoe Blvd, Northridge, CA 91325 · Los Angeles CountyPhone(818) 265-7777

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

Dr. Ron Gutmark is affiliated with 2 sites of care and 3 medical groups

Dr. Gutmark's primary practice is Specialty Eye Care Medical Center, Inc. in Northridge, California. The medical group on file is UC San Diego Health. Dmand AI also links Dr. Gutmark to 2 more medical groups and 1 group practice or clinic, each named with a free account.

See all 5 affiliations for Dr. Gutmark

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

Dmand AI tracks the EHR system at Dr. Ron Gutmark's practice

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

EHR by site
SiteEHR vendor and product
Specialty Eye Care Medical Center, Inc.Available with a free account
+1 more site and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Ron Gutmark is one of 2,621 ophthalmologists in California

Ophthalmology is Dr. Gutmark's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Gutmark is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Gutmark's licenses on file in 4 states: California, Maryland, Michigan and Pennsylvania.

Specialties and state licenses

  • Ophthalmology, CaliforniaPrimaryLicense A129409 · 2014 to 2025 · taxonomy 207W00000X
  • Internal medicine, MarylandLicense P25846 · taxonomy 207R00000X
  • Michigan licenseLicense 4301106769 · 2015 to 2019
  • Pennsylvania licenseLicense MD447468 · 2012 to 2014

Clinical focus

Dmand AI lists cataract, dry eye and vitreous eye degeneration among the conditions Dr. Gutmark treats.

Ophthalmologists near Dr. Gutmark

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. Ron Gutmark billed Medicare for 55 services in 2024

CMS data shows 55 Medicare services from Dr. Gutmark across 2 procedure codes in 2024, all of them office visits, for 55 Medicare patients. Medicare paid $4,497 for them. Every service was in an office.

Medicare services, 202455
Medicare patients55
Paid by Medicare$4,497
Procedure codes2

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

  • 2023
  • 2024
Office and hospital visits
2023: 152024: 55267%

Dr. Gutmark compared with the California median for ophthalmologists, 2024

  • Dr. Gutmark
  • California median
Medicare services
55vs 1,07995% below
Medicare patients
55vs 42187% below
Part D claims
2,774vs 6184.5 times

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

Dr. Gutmark'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 Dr. Gutmark

Need commercial claims for Dr. Gutmark?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gutmark and other ophthalmologists in California.

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

Dr. Ron Gutmark treated 55 Medicare patients in 2024, average age 73

CMS counts 55 Medicare patients who saw Dr. Gutmark in 2024. The largest group is 65 to 74, with 29 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.04, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Gutmark's median patient age at 66, with 59% women.

Medicare patients, 202455
Average age73
Average risk score1.04

Dr. Gutmark's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Gutmark's Medicare patients by sex, 2024

  • Women3360%
  • Men2240%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Diabetes40%
  4. Arthritis38%
  5. Ischemic heart disease31%

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

Dr. Gutmark's patients across all payers

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

Patient panel by age, all payers

Median age 66

Patient panel by sex, all payers

  • Women59%
  • Men41%

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

Dr. Ron Gutmark wrote 2,865 Medicare Part D claims in 2024

In 2024, Dr. Gutmark wrote 2,865 Medicare Part D claims for 822 patients. 53% of them were for generic drugs. CMS names the drug for 2,774 of them, across 33 drugs with 11 or more claims each, at $381,639 in total drug cost. In 2023, CMS named 5,661 claims across 35 drugs.

Part D claims, 20242,865
Drugs named by CMS33
Total drug cost$381,639
Part D patients822

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

  • Generic1,517 claims53%
  • Brand-name1,348 claims47%

Dr. Gutmark'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: 5,6612024: 2,77451%

Drugs named by CMS: 33 in 2024, 35 in 2023.

See all prescribing by Dr. Gutmark

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

How Dr. Ron Gutmark takes part in Medicare

Dr. Gutmark accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Ron Gutmark has 6 publications on record

Dmand AI links 6 papers to Dr. Gutmark, published from 2008 to 2013. 2013 was the busiest year, with 2. Dr. Gutmark's most frequent co-authors are David Guyton, MD, Kasra Eliasieh, MD and Garry Evan Gold, MD.

Papers6
Years published2008 to 2013

Dr. Gutmark's papers by year, 2008 to 2013

Dr. Gutmark's most frequent co-authors

Recent publications by Dr. Gutmark

See all 6 publications and co-authors

See who Dr. Gutmark researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Gutmark works with, so you can find a warm path to the right ophthalmologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Ron Gutmark received $4,145 in industry payments from 2016 to 2025

CMS Open Payments shows 192 general payments to Dr. Gutmark from 19 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Amgen Inc. paid the most, $1,190.

General payments to Dr. Gutmark by program year, 2016 to 2025

General payments to Dr. Gutmark by kind, 2016 to 2025

$4.1Kin total
  • Food and beverage$4,10399%
  • Education$421%

Companies that paid Dr. Gutmark the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Gutmark

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

Dr. Ron Gutmark graduated from The Johns Hopkins University School of Medicine

Dr. Gutmark graduated from The Johns Hopkins University School of Medicine in 2010.

  1. Medical schoolThe Johns Hopkins University School of Medicine
  2. Board certified in ophthalmologyAmerican Board of Ophthalmology

Source: Dmand AI Professional Profile Data

Dr. Ron Gutmark accepts plans from 12 insurance carriers

Dr. Gutmark is in network with 12 carriers, including Elevance, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Elevance
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • LA Care
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Health Alliance Plan
  • Molina
  • +4 more carriersWith a free account

Plan types Dr. Gutmark accepts, by number of carriers

  1. Medicare9
  2. PPO7
  3. HMO6
  4. POS4
  5. Medicaid2
  6. EPO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Ron Gutmark'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)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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 Dr. Ron Gutmark

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. Ron Gutmark's NPI number?

Dr. Ron Gutmark's NPI number is 1609189893. It was assigned on July 16, 2010, and it is active in the NPI Registry.

What kind of doctor is Dr. Ron Gutmark?

Dr. Ron Gutmark is an ophthalmologist in Northridge, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).

Where does Dr. Ron Gutmark practice?

Dr. Gutmark practices at 18250 W Roscoe Blvd, Northridge, CA 91325. Dr. Gutmark's primary practice is Specialty Eye Care Medical Center, Inc. in Northridge, California. Dmand AI also links Dr. Gutmark to 2 medical groups and 1 group practice or clinic.

What is Dr. Ron Gutmark's office phone number?

The practice phone on file for Dr. Gutmark is (818) 265-7777.

What is Dr. Ron Gutmark's medical license number?

Dr. Gutmark's California license number on file is A129409, one of the licenses on file in 4 states.

Which states has Dr. Ron Gutmark been licensed in?

Dmand AI has state licenses on file for Dr. Gutmark in California (2014 to 2025), Maryland, Michigan (2015 to 2019) and Pennsylvania (2012 to 2014).

What medical group is Dr. Ron Gutmark part of?

Dr. Gutmark is linked to UC San Diego Health. Dmand AI links Dr. Gutmark to 2 more medical groups.

Does Dr. Ron Gutmark accept Medicare?

Yes. CMS data shows Dr. Gutmark billed Medicare for 55 services in 2024, and Dr. Gutmark accepts Medicare assignment.

How many Medicare patients does Dr. Ron Gutmark see?

CMS counts 55 Medicare patients who saw Dr. Gutmark in 2024, with an average age of 73.

Is Dr. Ron Gutmark board certified?

Yes. Dr. Gutmark is board certified in ophthalmology by the American Board of Ophthalmology.

Show 8 more questionsShow fewer questions

What services does Dr. Ron Gutmark bill to Medicare?

In 2024, Dr. Gutmark's most billed Medicare services were office visit, established patient (99213) and office visit, established patient (99214).

Where did Dr. Ron Gutmark go to medical school?

Dr. Gutmark graduated from The Johns Hopkins University School of Medicine in 2010.

What drugs does Dr. Ron Gutmark prescribe most?

In 2024 Medicare Part D data, Dr. Gutmark's most prescribed drugs by claims were Latanoprost, Prednisolone Acetate and Moxifloxacin.

Has Dr. Ron Gutmark received payments from drug or device companies?

CMS Open Payments shows $4,145 in general payments to Dr. Gutmark from 19 companies from 2016 to 2025. The largest total came from Amgen Inc.

How long has Dr. Ron Gutmark been practicing?

Dr. Gutmark graduated from medical school in 2010, 16 years ago.

Does Dr. Ron Gutmark do research?

Dmand AI links 6 publications to Dr. Gutmark, published from 2008 to 2013.

Who does Dr. Ron Gutmark publish with?

Dr. Gutmark's most frequent co-authors are David Guyton, MD (2 shared papers), Kasra Eliasieh, MD (1 shared paper) and Garry Evan Gold, MD (1 shared paper).

What insurance does Dr. Ron Gutmark accept?

Dr. Gutmark is in network with 12 carriers, including Elevance, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

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