Dr. Robert Landman, MD
- Medicare services, 2024
- 466
- Medicare patients, 2024
- 190
- Part D claims, 2024
- 5,559
- Hospital affiliations
- 1
- Industry payments
- $1,147
- Practice address
- 4300 Rose Dr, Yorba Linda, CA 92886
- Practice phone
- Call (714) 449-4900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Providence Medical Foundation
Yorba Linda, California
Find Dr. Landman'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. Robert Landman is an internist in Yorba Linda, California
Dr. Landman practices at Providence Medical Foundation in Yorba Linda, California.
Dr. Landman's NPI, 1326035874, was assigned on September 30, 2005. Dr. Landman graduated from Chicago College of Medicine and Surgery in 1975. Dr. Landman holds California license G305501.
- NPI
- 1326035874NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8224066360
- NPI enumeration date
- September 30, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (714) 449-4900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 77
- Medical school graduation
- 1975
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert Landman practices at Providence Medical Foundation in Yorba Linda, California
Dr. Landman's primary practice is Providence Medical Foundation, at 4300 Rose Dr, Yorba Linda, CA 92886 in Orange County. The practice phone is (714) 449-4900.
- Providence Medical Foundation4300 Rose Dr, Yorba Linda, CA 92886 · Orange CountyPhone(714) 449-4900
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Robert Landman is affiliated with 4 sites of care and 1 medical group
Dr. Landman's primary practice is Providence Medical Foundation in Yorba Linda, California. Dr. Landman is also affiliated with Providence St. Jude Medical Center. The medical group on file is St. Jude Heritage Medical Group. Dmand AI also links Dr. Landman to 1 more group practice or clinic and 1 home health agency, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Robert Landman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Landman practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Providence Medical Foundation | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert Landman is one of 16,751 internists in California
Internal medicine is Dr. Landman's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Landman is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Landman
Counts of internists 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 Landman billed Medicare for 466 services in 2024
CMS data shows 466 Medicare services from Dr. Landman across 4 procedure codes in 2024, for 190 Medicare patients. Medicare paid $39,442 for them. Every service was in an office.
Dr. Landman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4472024: 39711%
- Other services
- 2023: 642024: 3742%
- Surgery
- 2023: 1502024: 3279%
Dr. Landman compared with the California median for internists, 2024
- Dr. Landman
- California median
- Medicare services
- 466vs 36129% above
- Medicare patients
- 190vs 15126% above
- Part D claims
- 4,864vs 42111.6 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Landman'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. Landman and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert Landman treated 190 Medicare patients in 2024, average age 75
CMS counts 190 Medicare patients who saw Dr. Landman in 2024. The largest group is 65 to 74, with 95 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 0.94, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Landman's median patient age at 73, with 42% women.
Dr. Landman's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Landman's Medicare patients by sex, 2024
- Women8344%
- Men10756%
Chronic conditions among Dr. Landman's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis41%
- Ischemic heart disease20%
- Diabetes19%
- Cancer17%
- Chronic kidney disease16%
- Anxiety15%
Share of Medicare patients with each condition. A patient can have several.
Dr. Landman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women42%
- Men57%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert Landman wrote 5,559 Medicare Part D claims in 2024
In 2024, Dr. Landman wrote 5,559 Medicare Part D claims for 499 patients. 93% of them were for generic drugs. CMS names the drug for 4,864 of them, across 86 drugs with 11 or more claims each, at $238,228 in total drug cost. In 2023, CMS named 5,109 claims across 94 drugs.
Dr. Landman's Part D claims by kind of drug, 2024
- Generic5,148 claims93%
- Brand-name395 claims7%
- Other16 claims0%
Dr. Landman'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. Landman's Part D claims, 2024
- Opioids2%108 of 5,559 claims
- Antibiotics3%143 of 5,559 claims
- Antipsychotics, patients 65 and over0%16 of 5,559 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: 5,1092024: 4,8645%
Drugs named by CMS: 86 in 2024, 94 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. Robert Landman offers telehealth to Medicare patients
Dr. Landman accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Landman as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Robert Landman received $1,147 in industry payments from 2016 to 2025
CMS Open Payments shows 66 general payments to Dr. Landman from 20 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Merck Sharp & Dohme Corporation paid the most, $169.
General payments to Dr. Landman by program year, 2016 to 2025
General payments to Dr. Landman by kind, 2016 to 2025
- Food and beverage$1,12898%
- Consulting fees$202%
Companies that paid Dr. Landman the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert Landman graduated from Chicago College of Medicine and Surgery
Dr. Landman graduated from Chicago College of Medicine and Surgery in 1975.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert Landman'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Robert Landman
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 Landman's NPI number?
Dr. Robert Landman's NPI number is 1326035874. It was assigned on September 30, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert Landman?
Dr. Robert Landman is an internist in Yorba Linda, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Robert Landman practice?
Dr. Landman practices at 4300 Rose Dr, Yorba Linda, CA 92886. Dr. Landman's primary practice is Providence Medical Foundation in Yorba Linda, California. Dmand AI also links Dr. Landman to 1 group practice or clinic and 1 home health agency.
What is Dr. Robert Landman's office phone number?
The practice phone on file for Dr. Landman is (714) 449-4900.
What is Dr. Robert Landman's medical license number?
Dr. Landman holds California license G305501.
Which hospitals is Dr. Robert Landman affiliated with?
Dr. Landman is affiliated with Providence St. Jude Medical Center.
What medical group is Dr. Robert Landman part of?
Dr. Landman is linked to St. Jude Heritage Medical Group.
Does Dr. Robert Landman accept Medicare?
Yes. CMS data shows Dr. Landman billed Medicare for 466 services in 2024, and Dr. Landman accepts Medicare assignment.
Does Dr. Robert Landman offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Landman as offering telehealth services.
How many Medicare patients does Dr. Robert Landman see?
CMS counts 190 Medicare patients who saw Dr. Landman in 2024, with an average age of 75.
Show 5 more questionsShow fewer questions
What services does Dr. Robert Landman bill to Medicare?
In 2024, Dr. Landman's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and medicare service (G0439).
Where did Dr. Robert Landman go to medical school?
Dr. Landman graduated from Chicago College of Medicine and Surgery in 1975.
What drugs does Dr. Robert Landman prescribe most?
In 2024 Medicare Part D data, Dr. Landman's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Amlodipine Besylate.
Has Dr. Robert Landman received payments from drug or device companies?
CMS Open Payments shows $1,147 in general payments to Dr. Landman from 20 companies from 2016 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Robert Landman been practicing?
Dr. Landman graduated from medical school in 1975, 51 years ago.
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