Dr. Richard Mark Biebuyck, MD
- Part D claims, 2024
- 124
- Industry payments
- $11,227
- Affiliated sites
- 2
- Medical groups
- 2
- Insurance carriers
- 7
- Practice address
- 415 W Route 66 Ste 202 Suite 202, Glendora, CA 91740-4335
- Practice phone
- Call (626) 963-4467
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Jacob Girgis
Behavioral health practice · Glendora, California
Find Dr. Biebuyck'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. Richard Mark Biebuyck is a psychiatrist in Oakland, California
Dr. Biebuyck practices at Jacob Girgis in Glendora, California.
Dr. Biebuyck's NPI, 1770521734, was assigned on June 3, 2006. Dr. Biebuyck graduated from University of Rochester Medical Center in 1996. Dr. Biebuyck holds California license A78684.
- NPI
- 1770521734NPI Registry (opens in a new tab)
- NPI enumeration date
- June 3, 2006
- NPI status
- Active
- Practice phone
- (626) 963-4467
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Richard Mark Biebuyck practices in Glendora and Oakland
Dr. Biebuyck's primary practice is Jacob Girgis, at 415 W Route 66 Ste 202 Suite 202, Glendora, CA 91740-4335. The practice phone is (626) 963-4467. The NPI Registry lists Dr. Biebuyck's practice address as 3718 Grand Ave, Oakland, CA 94610.
- Jacob GirgisPrimary415 W Route 66 Ste 202 Suite 202, Glendora, CA 91740-4335Phone(626) 963-4467
- NPI Registry address3718 Grand Ave, Oakland, CA 94610 · Alameda CountyPhone(626) 963-4467
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Richard Mark Biebuyck is affiliated with 2 sites of care and 2 medical groups
Dr. Biebuyck's primary practice is Jacob Girgis in Glendora, California. Dmand AI also links Dr. Biebuyck to 2 medical groups and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Richard Mark Biebuyck's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Biebuyck practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Jacob Girgis | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Richard Mark Biebuyck is one of 6,803 psychiatrists in California
Psychiatry is Dr. Biebuyck's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Biebuyck is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Biebuyck's licenses on file in 2 states: California and Washington.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
- Washington license
Psychiatrists near Dr. Biebuyck
Counts of psychiatrists 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. Richard Mark Biebuyck's patients have a median age of 40
Across all payers, Dmand AI patient panel data puts Dr. Biebuyck's median patient age at 40, with 50% women.
Dr. Biebuyck's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 40
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Richard Mark Biebuyck wrote 124 Medicare Part D claims in 2024
In 2024, Dr. Biebuyck wrote 124 Medicare Part D claims. 98% of them were for generic drugs. CMS names the drug for 57 of them, across 4 drugs with 11 or more claims each, at $601 in total drug cost. In 2023, CMS named 29 claims across 2 drugs.
Dr. Biebuyck's Part D claims by kind of drug, 2024
- Generic121 claims98%
- Brand-name and other3 claims2%
Dr. Biebuyck'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: 292024: 5797%
Drugs named by CMS: 4 in 2024, 2 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
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Dr. Richard Mark Biebuyck received $11,227 in industry payments from 2016 to 2025
CMS Open Payments shows 533 general payments to Dr. Biebuyck from 22 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Lundbeck LLC paid the most, $2,299.
General payments to Dr. Biebuyck by program year, 2016 to 2025
General payments to Dr. Biebuyck by kind, 2016 to 2025
- Food and beverage$11,221100%
- Education$60%
Companies that paid Dr. Biebuyck 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. Richard Mark Biebuyck has 1 award and honors on record
Dmand AI lists 1 award for Dr. Biebuyck.
Awards and honors for Dr. Biebuyck
- Undated
- Compassionate Doctors
Source: Dmand AI Professional Profile Data
Dr. Richard Mark Biebuyck graduated from University of Rochester Medical Center
Dr. Biebuyck graduated from University of Rochester Medical Center in 1996.
- Medical school
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. Richard Mark Biebuyck accepts plans from 7 insurance carriers
Dr. Biebuyck is in network with 7 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- HCSC
- Regence Health Plans
- United Healthcare
Plan types Dr. Biebuyck accepts, by number of carriers
- Medicare7
- PPO6
- EPO2
- HMO2
- POS2
Source: Dmand AI Insurance Network Data
Sources for Dr. Richard Mark Biebuyck'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Richard Mark Biebuyck
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. Richard Mark Biebuyck's NPI number?
Dr. Richard Mark Biebuyck's NPI number is 1770521734. It was assigned on June 3, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Richard Mark Biebuyck?
Dr. Richard Mark Biebuyck is a psychiatrist in Oakland, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Richard Mark Biebuyck practice?
Dr. Biebuyck practices at 415 W Route 66 Ste 202 Suite 202, Glendora, CA 91740-4335. Dr. Biebuyck also practices at 3718 Grand Ave, Oakland, CA 94610. Dr. Biebuyck's primary practice is Jacob Girgis in Glendora, California. Dmand AI also links Dr. Biebuyck to 2 medical groups and 1 group practice or clinic.
What is Dr. Richard Mark Biebuyck's office phone number?
The practice phone on file for Dr. Biebuyck is (626) 963-4467.
What is Dr. Richard Mark Biebuyck's medical license number?
Dr. Biebuyck holds California license A78684, one of the licenses on file in 2 states.
Which states has Dr. Richard Mark Biebuyck been licensed in?
Dmand AI has state licenses on file for Dr. Biebuyck in California (2002 to 2026) and Washington (1999 to 2026).
Is Dr. Richard Mark Biebuyck board certified?
Yes. Dr. Biebuyck is board certified in psychiatry by the American Board of Psychiatry and Neurology.
Where did Dr. Richard Mark Biebuyck go to medical school?
Dr. Biebuyck graduated from University of Rochester Medical Center in 1996.
What drugs does Dr. Richard Mark Biebuyck prescribe most?
In 2024 Medicare Part D data, Dr. Biebuyck's most prescribed drugs by claims were Alprazolam, Clonazepam and Duloxetine HCl.
Has Dr. Richard Mark Biebuyck received payments from drug or device companies?
CMS Open Payments shows $11,227 in general payments to Dr. Biebuyck from 22 companies from 2016 to 2025. The largest total came from Lundbeck LLC.
How long has Dr. Richard Mark Biebuyck been practicing?
Dr. Biebuyck graduated from medical school in 1996, 30 years ago.
What insurance does Dr. Richard Mark Biebuyck accept?
Dr. Biebuyck is in network with 7 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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