Dr. Robert David Ferrera, MD
- Medicare services, 2024
- 748
- Medicare patients, 2024
- 125
- Part D claims, 2024
- 29
- Industry payments
- $7,172
- Affiliated sites
- 2
- Practice address
- 2592 N Santiago Blvd, Orange, CA 92867
- Practice phone
- Call (855) 434-7763
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
J M Geiss DO APC
Orange, California
Find Dr. Ferrera'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 David Ferrera is an adult medicine physician in Orange, California
Dr. Ferrera practices at J M Geiss DO APC in Orange, California.
Dr. Ferrera's NPI, 1578718938, was assigned on November 25, 2008. Dr. Ferrera graduated from University of Washington School of Medicine in 1972. Dr. Ferrera holds California license G24689.
- NPI
- 1578718938NPI Registry (opens in a new tab)
- NPI enumeration date
- November 25, 2008
- NPI status
- Active
- Practice phone
- (855) 434-7763
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 80
- Medical school graduation
- 1972
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Robert David Ferrera practices at J M Geiss DO APC in Orange, California
Dr. Ferrera's primary practice is J M Geiss DO APC, at 2592 N Santiago Blvd, Orange, CA 92867 in Orange County. The practice phone is (855) 434-7763.
- J M Geiss DO APC2592 N Santiago Blvd, Orange, CA 92867 · Orange CountyPhone(855) 434-7763
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Robert David Ferrera is affiliated with 3 sites of care and 2 medical groups
Dr. Ferrera's primary practice is J M Geiss DO APC in Orange, California. The medical group on file is PIH Health Physicians (John M. Geiss, DO). Dmand AI also links Dr. Ferrera to 2 more group practices and clinics and 1 medical group, 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 David Ferrera's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ferrera practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| J M Geiss DO APC | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Robert David Ferrera is one of 299 adult medicine physicians in California
Adult medicine is Dr. Ferrera's primary specialty in the NPI Registry, under taxonomy code 207QA0505X. Dr. Ferrera is licensed in California.
Specialties and state licenses
- Adult medicine, CaliforniaPrimary
Adult medicine physicians near Dr. Ferrera
Counts of adult 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 David Ferrera billed Medicare for 748 services in 2024
CMS data shows 748 Medicare services from Dr. Ferrera across 6 procedure codes in 2024, for 125 Medicare patients. Medicare paid $53,940 for them. Every service was in an office.
Dr. Ferrera's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 592024: 7481168%
Dr. Ferrera compared with the California median for adult medicine physicians, 2024
- Dr. Ferrera
- California median
- Medicare services
- 748vs 1993.8 times
- Medicare patients
- 125vs 10915% above
- Part D claims
- 409vs 96358% below
Medians across 284 adult medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Ferrera'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.
Need commercial claims for Dr. Ferrera?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ferrera and other adult medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert David Ferrera treated 125 Medicare patients in 2024, average age 83
CMS counts 125 Medicare patients who saw Dr. Ferrera in 2024. The largest group is 85 and over, with 62 patients. 75% of them have alzheimer's and dementia, and 75% have depression. 25% are also on Medicaid. Their average risk score is 2.03, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Ferrera's median patient age at 69, with 100% women.
Dr. Ferrera's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Ferrera's Medicare patients by sex, 2024
- Women8971%
- Men3629%
Chronic conditions among Dr. Ferrera's Medicare patients, 2024
- Alzheimer's and dementia75%
- Depression75%
- High blood pressure75%
- Mood disorders75%
- High cholesterol74%
- Anxiety58%
- Arthritis54%
- Chronic kidney disease41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ferrera's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women100%
- Men0%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert David Ferrera wrote 29 Medicare Part D claims in 2024
In 2024, Dr. Ferrera wrote 29 Medicare Part D claims. 100% of them were for generic drugs. They cover 19 drugs, with $8,347 in total drug cost. In 2021, CMS named 384 claims across 19 drugs.
Dr. Ferrera's most prescribed drugs by claims, 2022
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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 3842022: 4097%
Drugs named by CMS: 19 in 2022, 19 in 2021.
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
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Robert David Ferrera received $7,172 in industry payments from 2016 to 2023
CMS Open Payments shows 79 general payments to Dr. Ferrera from 5 drug and device companies from 2016 to 2023. Travel and lodging make up the largest share, 47% of the total. Moderna TX, Inc. paid the most, $4,016.
General payments to Dr. Ferrera by program year, 2016 to 2023
General payments to Dr. Ferrera by kind, 2016 to 2023
- Travel and lodging$3,33947%
- Food and beverage$2,03328%
- Speaker and faculty fees$1,80025%
Companies that paid Dr. Ferrera the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert David Ferrera graduated from University of Washington School of Medicine
Dr. Ferrera graduated from University of Washington School of Medicine in 1972.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert David Ferrera'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) |
| 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 David Ferrera
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 David Ferrera's NPI number?
Dr. Robert David Ferrera's NPI number is 1578718938. It was assigned on November 25, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert David Ferrera?
Dr. Robert David Ferrera is an adult medicine physician in Orange, California. The primary specialty in the NPI Registry is Adult Medicine Physician (taxonomy code 207QA0505X).
Where does Dr. Robert David Ferrera practice?
Dr. Ferrera practices at 2592 N Santiago Blvd, Orange, CA 92867. Dr. Ferrera's primary practice is J M Geiss DO APC in Orange, California. Dmand AI also links Dr. Ferrera to 2 group practices and clinics and 1 medical group.
What is Dr. Robert David Ferrera's office phone number?
The practice phone on file for Dr. Ferrera is (855) 434-7763.
What is Dr. Robert David Ferrera's medical license number?
Dr. Ferrera holds California license G24689.
What medical group is Dr. Robert David Ferrera part of?
Dr. Ferrera is linked to PIH Health Physicians (John M. Geiss, DO). Dmand AI links Dr. Ferrera to 1 more medical group.
Does Dr. Robert David Ferrera accept Medicare?
Yes. CMS data shows Dr. Ferrera billed Medicare for 748 services in 2024.
How many Medicare patients does Dr. Robert David Ferrera see?
CMS counts 125 Medicare patients who saw Dr. Ferrera in 2024, with an average age of 83.
What services does Dr. Robert David Ferrera bill to Medicare?
In 2024, Dr. Ferrera's most billed Medicare services were care management and other visits (99489), care management and other visits (99487) and care management and other visits (99458).
Where did Dr. Robert David Ferrera go to medical school?
Dr. Ferrera graduated from University of Washington School of Medicine in 1972.
Show 3 more questionsShow fewer questions
What drugs does Dr. Robert David Ferrera prescribe most?
In 2022 Medicare Part D data, Dr. Ferrera's most prescribed drugs by claims were Carvedilol, Levothyroxine Sodium and Atorvastatin Calcium.
Has Dr. Robert David Ferrera received payments from drug or device companies?
CMS Open Payments shows $7,172 in general payments to Dr. Ferrera from 5 companies from 2016 to 2023. The largest total came from Moderna TX, Inc.
How long has Dr. Robert David Ferrera been practicing?
Dr. Ferrera graduated from medical school in 1972, 54 years ago.
Selling to adult medicine practices?
See adult medicine physicians in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card