Dr. Robert Gabriel Feldman, MD

  • Laguna Hills, CA
  • Geriatric medicine (internal medicine) physician
NPI1194805416PAC ID6204809205
Medicare services, 2024
25,455
Medicare patients, 2024
248
Part D claims, 2024
8,361
Publications
3
Clinical trials
6
Practice address
23961 Calle De La Magdalena, Laguna Hills, CA 92653-3616
Practice phone
Call (949) 452-1930
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Feldman Robert G Medical Group

Physician office · Laguna Hills, California

See all 7 affiliations

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Dr. Robert Gabriel Feldman is a geriatric medicine (internal medicine) physician in Laguna Hills, California

Dr. Feldman practices at Feldman Robert G Medical Group in Laguna Hills, California.

Dr. Feldman's NPI, 1194805416, was assigned on October 17, 2006. Dr. Feldman graduated from SUNY Downstate Health Sciences University in 1986. Dr. Feldman holds California license G68484.

NPI and contact details
Medicare PAC ID
6204809205
NPI enumeration date
October 17, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(949) 452-1930
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
66
Medical school graduation
1986

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

Dr. Robert Gabriel Feldman practices at Feldman Robert G Medical Group in Laguna Hills, California

Dr. Feldman's primary practice is Feldman Robert G Medical Group, at 23961 Calle De La Magdalena, Laguna Hills, CA 92653-3616. The practice phone is (949) 452-1930.

  • Feldman Robert G Medical Group
    23961 Calle De La Magdalena, Laguna Hills, CA 92653-3616Phone(949) 452-1930

Source: Dmand AI Affiliation Data

Dr. Robert Gabriel Feldman is affiliated with 7 sites of care

Dr. Feldman's primary practice is Feldman Robert G Medical Group in Laguna Hills, California. Dr. Feldman is also affiliated with MemorialCare Saddleback Medical Center. Dmand AI also links Dr. Feldman to 1 more hospital and 4 home health agencies, each named with a free account.

See all 7 affiliations for Dr. Feldman

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Robert Gabriel Feldman's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Feldman practices, 7 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Feldman Robert G Medical GroupAvailable with a free account
+6 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Robert Gabriel Feldman is one of 497 geriatric medicine (internal medicine) physicians in California

Geriatric medicine is Dr. Feldman's primary specialty in the NPI Registry, under taxonomy code 207RG0300X. Dr. Feldman is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Feldman's licenses on file in 6 states: California, Arizona, Maine, New York, North Carolina and Georgia.

Specialties and state licenses

  • Geriatric medicine (internal medicine), CaliforniaPrimaryLicense G68484 · 1990 to 2027 · taxonomy 207RG0300X
  • Arizona licenseSince 1990
  • Maine licenseSince 1990
  • New York licenseSince 1990
  • North Carolina license1990 to 1992
  • Georgia license1988 to 1991

Clinical focus

Dmand AI lists acid reflux, acute mini-stroke (TIA), acute sinusitis, acute skin infection, aneurysm, arthritis, asthma and atrial fibrillation and flutter among the conditions Dr. Feldman treats.

Geriatric medicine (internal medicine) physicians near Dr. Feldman

Counts of geriatric medicine (internal medicine) physicians 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. Robert Gabriel Feldman billed Medicare for 25,455 services in 2024

CMS data shows 25,455 Medicare services from Dr. Feldman across 22 procedure codes in 2024, for 248 Medicare patients. Medicare paid $434,637 for them. Every service was in an office.

Medicare services, 202425,455
Medicare patients248
Paid by Medicare$434,637
Procedure codes22

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

  • 2023
  • 2024
Drugs given in the office
2023: 6,4212024: 22,950257%
Office and hospital visits
2023: 1,1182024: 1,0585%
Other services
2023: 8402024: 8946%
Tests and treatments
2023: 4062024: 48820%
Imaging
2023: 442024: 6548%

Dr. Feldman compared with the California median for geriatric medicine (internal medicine) physicians, 2024

  • Dr. Feldman
  • California median
Medicare services
25,455vs 42460.0 times
Medicare patients
248vs 17839% above
Part D claims
7,880vs 9308.5 times

Medians across 466 geriatric medicine (internal medicine) physicians in California with Dmand AI profiles that report each measure.

Dr. Feldman'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. Feldman

Need commercial claims for Dr. Feldman?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Feldman and other geriatric medicine (internal medicine) physicians in California.

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

Dr. Robert Gabriel Feldman treated 248 Medicare patients in 2024, average age 78

CMS counts 248 Medicare patients who saw Dr. Feldman in 2024. The largest group is 65 to 74, with 100 patients. 75% of them have high cholesterol, and 74% have high blood pressure. Their average risk score is 1.11, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Feldman's median patient age at 79, with 61% women.

Medicare patients, 2024248
Average age78
Average risk score1.11

Dr. Feldman's Medicare patients by age, 2024

Dr. Feldman's Medicare patients by sex, 2024

  • Women14860%
  • Men10040%

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

  1. High cholesterol75%
  2. High blood pressure74%
  3. Osteoporosis55%
  4. Arthritis50%
  5. Chronic kidney disease41%
  6. Mood disorders33%
  7. Anxiety32%
  8. Depression30%

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

Dr. Feldman'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

  • Women61%
  • Men38%

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

Dr. Robert Gabriel Feldman wrote 8,361 Medicare Part D claims in 2024

In 2024, Dr. Feldman wrote 8,361 Medicare Part D claims for 394 patients. 92% of them were for generic drugs. CMS names the drug for 7,880 of them, across 110 drugs with 11 or more claims each, at $485,634 in total drug cost. In 2023, CMS named 7,213 claims across 99 drugs.

Part D claims, 20248,361
Drugs named by CMS110
Total drug cost$485,634
Part D patients394

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

  • Generic7,683 claims92%
  • Brand-name657 claims8%
  • Other21 claims0%

Dr. Feldman'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.

Drug classes CMS tracks in Dr. Feldman's Part D claims, 2024

  • Opioids1%87 of 8,361 claims
  • Antibiotics2%204 of 8,361 claims
  • Antipsychotics, patients 65 and over1%47 of 8,361 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 7,2132024: 7,8809%

Drugs named by CMS: 110 in 2024, 99 in 2023.

See all prescribing by Dr. Feldman

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. Robert Gabriel Feldman takes part in Medicare

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

Accepts Medicare assignment
Yes

Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

For MedTech and pharma teams

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Dr. Robert Gabriel Feldman has 3 publications on record

Dmand AI links 3 papers to Dr. Feldman in 2009. The most frequent topics are Bone Density Conservation Agents, Bone Density and Osteoporosis. Dr. Feldman's most frequent co-authors are Robin K. Dore, MD, Andrew M. Kaunitz, MD and Michael R. Mcclung, MD.

Papers3

Topics Dr. Feldman writes about most

  • Bone Density Conservation Agents
  • Bone Density
  • Osteoporosis
  • RANK Ligand

Dr. Feldman's most frequent co-authors

Recent publications by Dr. Feldman

See all 3 publications and co-authors

See who Dr. Feldman researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Feldman works with, so you can find a warm path to the right geriatric medicine (internal medicine) physicians.

How network discovery works

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

Dr. Robert Gabriel Feldman has worked on 6 clinical trials

Dmand AI links Dr. Feldman to 6 clinical trials, 2 of them phase 2/3 studies. 1 is still active or recruiting. Conditions studied include Alzheimer Disease, Tauopathies and Cognitive Dysfunction. Eli Lilly and Company sponsors the most, 2. Open Payments lists research payments to Dr. Feldman that name 2 trials.

Clinical trials with Dr. Feldman by phase

  1. NonePhase 1: no trials
  2. NonePhase 2: no trials
  3. 2Phase 2/3: 2 trials
  4. 2Phase 3: 2 trials
  5. NonePhase 4: no trials

Conditions in Dr. Feldman's trials

  • Alzheimer Disease
  • Tauopathies
  • Cognitive Dysfunction
  • Plaque, Amyloid
  • Cognition Disorders

Investigators on the most trials with Dr. Feldman

Recent clinical trials with Dr. Feldman

See all 6 clinical trials and co-investigators

Sources: Open Payments (CMS), 2025 data, released July 7, 2026; Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Robert Gabriel Feldman received $1,647,489 in industry payments from 2016 to 2025

CMS Open Payments shows 2,977 general payments to Dr. Feldman from 21 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 77% of the total. Amgen Inc. paid the most, $792,944. It also lists 14 research payments totaling $12,810 from 2017 to 2023, naming 2 clinical trials.

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

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

$1.6Min total
  • Speaker and faculty fees$1,267,08477%
  • Travel and lodging$276,30717%
  • Food and beverage$51,9493%
  • Consulting fees$51,3993%
  • Education$7520%

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

Share is of all general payments to this clinician.

See all payments to Dr. Feldman

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

Dr. Robert Gabriel Feldman graduated from SUNY Downstate Health Sciences University

Dr. Feldman graduated from SUNY Downstate Health Sciences University in 1986. Dr. Feldman is a member of ACP.

  1. Medical schoolSUNY Downstate Health Sciences University
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Robert Gabriel Feldman accepts plans from 9 insurance carriers

Dr. Feldman is in network with 9 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Excellus BlueCross BlueShield
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • CMS Medicare
  • +1 more carriersWith a free account

Plan types Dr. Feldman accepts, by number of carriers

  1. Medicare8
  2. PPO7
  3. HMO5
  4. POS4
  5. EPO3

Source: Dmand AI Insurance Network Data

Sources for Dr. Robert Gabriel Feldman'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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
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. Robert Gabriel Feldman

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. Robert Gabriel Feldman's NPI number?

Dr. Robert Gabriel Feldman's NPI number is 1194805416. It was assigned on October 17, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Robert Gabriel Feldman?

Dr. Robert Gabriel Feldman is a geriatric medicine (internal medicine) physician in Laguna Hills, California. The primary specialty in the NPI Registry is Geriatric Medicine (Internal Medicine) Physician (taxonomy code 207RG0300X).

Where does Dr. Robert Gabriel Feldman practice?

Dr. Feldman practices at 23961 Calle De La Magdalena, Laguna Hills, CA 92653-3616. Dr. Feldman's primary practice is Feldman Robert G Medical Group in Laguna Hills, California. Dmand AI also links Dr. Feldman to 1 hospital and 4 home health agencies.

What is Dr. Robert Gabriel Feldman's office phone number?

The practice phone on file for Dr. Feldman is (949) 452-1930.

What is Dr. Robert Gabriel Feldman's medical license number?

Dr. Feldman holds California license G68484, one of the licenses on file in 6 states.

Which states has Dr. Robert Gabriel Feldman been licensed in?

Dmand AI has state licenses on file for Dr. Feldman in California (1990 to 2027), Arizona (since 1990), Maine (since 1990), New York (since 1990), North Carolina (1990 to 1992) and Georgia (1988 to 1991).

Which hospitals is Dr. Robert Gabriel Feldman affiliated with?

Dr. Feldman is affiliated with MemorialCare Saddleback Medical Center. Dmand AI links Dr. Feldman to 1 more hospital.

Does Dr. Robert Gabriel Feldman accept Medicare?

Yes. CMS data shows Dr. Feldman billed Medicare for 25,455 services in 2024, and Dr. Feldman accepts Medicare assignment.

How many Medicare patients does Dr. Robert Gabriel Feldman see?

CMS counts 248 Medicare patients who saw Dr. Feldman in 2024, with an average age of 78.

Is Dr. Robert Gabriel Feldman board certified?

Yes. Dr. Feldman is board certified in internal medicine by the American Board of Internal Medicine.

Show 8 more questionsShow fewer questions

What services does Dr. Robert Gabriel Feldman bill to Medicare?

In 2024, Dr. Feldman's most billed Medicare services were injected or infused drug (J3111), injected or infused drug (J0897) and office visit, established patient (99214).

Where did Dr. Robert Gabriel Feldman go to medical school?

Dr. Feldman graduated from SUNY Downstate Health Sciences University in 1986.

What drugs does Dr. Robert Gabriel Feldman prescribe most?

In 2024 Medicare Part D data, Dr. Feldman's most prescribed drugs by claims were Metoprolol Succinate, Pantoprazole Sodium and Montelukast Sodium.

Has Dr. Robert Gabriel Feldman received payments from drug or device companies?

CMS Open Payments shows $1,647,489 in general payments to Dr. Feldman from 21 companies from 2016 to 2025. The largest total came from Amgen Inc.

How long has Dr. Robert Gabriel Feldman been practicing?

Dr. Feldman graduated from medical school in 1986, 40 years ago.

Does Dr. Robert Gabriel Feldman do research?

Dmand AI links 3 publications to Dr. Feldman. Dr. Feldman has worked on 6 clinical trials.

Who does Dr. Robert Gabriel Feldman publish with?

Dr. Feldman's most frequent co-authors are Robin K. Dore, MD (1 shared paper), Andrew M. Kaunitz, MD (1 shared paper) and Michael R. Mcclung, MD (1 shared paper).

What insurance does Dr. Robert Gabriel Feldman accept?

Dr. Feldman is in network with 9 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.

Selling to geriatric medicine practices?

See geriatric medicine (internal medicine) physicians in California by site of care and group

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