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Dr. Raymond J. Chan, DO
NPI1780916734PAC ID3577727577
- Part D claims, 2024
- 1,133
- Publications
- 3
- Hospital affiliations
- 2
- Industry payments
- $115
- Medical group
- 1
- Practice address
- 3733 San Dimas St, Bakersfield, CA 93301
- Practice phone
- Call (800) 353-5400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Southern California Permanente Medical Group
Bakersfield, California
Find Dr. Chan'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. Raymond J. Chan is an orthopedic surgeon in Bakersfield, California
Dr. Chan practices at Southern California Permanente Medical Group in Bakersfield, California.
Dr. Chan's NPI, 1780916734, was assigned on February 2, 2010. Dr. Chan graduated from WesternU College of Osteopathic Medicine of the Pacific in 2008. Dr. Chan holds California license 20A11062.
NPI and contact details
- NPI
- 1780916734NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577727577
- NPI enumeration date
- February 2, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (800) 353-5400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Raymond J. Chan practices at Southern California Permanente Medical Group in Bakersfield, California
Dr. Chan's primary practice is Southern California Permanente Medical Group, at 3733 San Dimas St, Bakersfield, CA 93301 in Kern County. The practice phone is (800) 353-5400.
- Southern California Permanente Medical Group3733 San Dimas St, Bakersfield, CA 93301 · Kern CountyPhone(800) 353-5400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Raymond J. Chan is affiliated with 3 sites of care and 1 medical group
Dr. Chan's primary practice is Southern California Permanente Medical Group in Bakersfield, California. Dr. Chan is also affiliated with Adventist Health Bakersfield. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Chan to 1 more hospital, named with a free account.
Southern California Permanente Medical GroupPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Raymond J. Chan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Southern California Permanente Medical Group | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Raymond J. Chan is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Chan's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Chan is board certified in 2009 - 2025 by the CA State License. Dr. Chan is licensed in California.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
Clinical focus
Dmand AI lists arthritis among the conditions Dr. Chan treats.
Orthopedic surgeons near Dr. Chan
Counts of orthopedic surgeons 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. Raymond J. Chan's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Chan's median patient age at 66, with 57% women.
Dr. Chan'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
- Women57%
- Men42%
Source: Dmand AI Patient Panel Data
Dr. Raymond J. Chan wrote 1,133 Medicare Part D claims in 2024
In 2024, Dr. Chan wrote 1,133 Medicare Part D claims for 220 patients. 100% of them were for generic drugs. CMS names the drug for 1,084 of them, across 11 drugs with 11 or more claims each, at $12,656 in total drug cost. In 2023, CMS named 522 claims across 8 drugs.
Part D claims, 20241,133
Drugs named by CMS11
Total drug cost$12,656
Part D patients220
Dr. Chan'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. Chan's Part D claims, 2024
- Opioids58%659 of 1,133 claims
- Antibiotics6%70 of 1,133 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: 5222024: 1,084108%
Drugs named by CMS: 11 in 2024, 8 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
How Dr. Raymond J. Chan takes part in Medicare
Dr. Chan 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. Raymond J. Chan has 3 publications on record
Dmand AI links 3 papers to Dr. Chan in 2011. Dr. Chan's most frequent co-authors are Francois D. Lalonde, MD, John Anthony Schlechter, DO and Carl Weinert, MD.
Papers3
Dr. Chan's most frequent co-authors
- Francois D. Lalonde, MD1 shared paper
- John Anthony Schlechter, DO1 shared paper
- Carl Weinert, MD1 shared paper
Recent publications by Dr. Chan
Antineoplastic AgentsCatheterizationPhlebitis
J Pediatr Orthop
ArthrographyCarbon DioxideContrast Media
See who Dr. Chan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chan works with, so you can find a warm path to the right orthopedic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Raymond J. Chan received $115 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Chan from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Bristol-Myers Squibb Company paid the most, $115.
Companies that paid Dr. Chan the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Raymond J. Chan graduated from WesternU College of Osteopathic Medicine of the Pacific
Dr. Chan graduated from WesternU College of Osteopathic Medicine of the Pacific in 2008.
- Medical school
- Board certified in 2009 - 2025
- Board certified in 2013 - 2015
Source: Dmand AI Professional Profile Data
Dr. Raymond J. Chan accepts plans from 4 insurance carriers
Dr. Chan is in network with 4 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Kaiser Permanente. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Michigan
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Chan accepts, by number of carriers
- HMO3
- POS3
- EPO2
- Medicare2
- PPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Raymond J. Chan'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 DataDmand AI Org Hierarchy Data |
| 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Raymond J. Chan
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. Raymond J. Chan's NPI number?
Dr. Raymond J. Chan's NPI number is 1780916734. It was assigned on February 2, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Raymond J. Chan?
Dr. Raymond J. Chan is an orthopedic surgeon in Bakersfield, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Raymond J. Chan practice?
Dr. Chan practices at 3733 San Dimas St, Bakersfield, CA 93301. Dr. Chan's primary practice is Southern California Permanente Medical Group in Bakersfield, California. Dmand AI also links Dr. Chan to 1 hospital.
What is Dr. Raymond J. Chan's office phone number?
The practice phone on file for Dr. Chan is (800) 353-5400.
What is Dr. Raymond J. Chan's medical license number?
Dr. Chan holds California license 20A11062.
Which hospitals is Dr. Raymond J. Chan affiliated with?
Dr. Chan is affiliated with Adventist Health Bakersfield. Dmand AI links Dr. Chan to 1 more hospital.
What medical group is Dr. Raymond J. Chan part of?
Dr. Chan is linked to Southern California Permanente Medical Group.
Does Dr. Raymond J. Chan accept Medicare?
Yes. CMS lists Dr. Chan as accepting Medicare assignment.
Is Dr. Raymond J. Chan board certified?
Yes. Dr. Chan is board certified in 2009 - 2025 by the CA State License.
Where did Dr. Raymond J. Chan go to medical school?
Dr. Chan graduated from WesternU College of Osteopathic Medicine of the Pacific in 2008.
Show 6 more questionsShow fewer questions
What drugs does Dr. Raymond J. Chan prescribe most?
In 2024 Medicare Part D data, Dr. Chan's most prescribed drugs by claims were Oxycodone HCl, Hydrocodone-Acetaminophen and Oxycodone-Acetaminophen.
Has Dr. Raymond J. Chan received payments from drug or device companies?
CMS Open Payments shows $115 in general payments to Dr. Chan from 1 company from 2016 to 2016. The largest total came from Bristol-Myers Squibb Company.
How long has Dr. Raymond J. Chan been practicing?
Dr. Chan graduated from medical school in 2008, 18 years ago.
Does Dr. Raymond J. Chan do research?
Dmand AI links 3 publications to Dr. Chan.
Who does Dr. Raymond J. Chan publish with?
Dr. Chan's most frequent co-authors are Francois D. Lalonde, MD (1 shared paper), John Anthony Schlechter, DO (1 shared paper) and Carl Weinert, MD (1 shared paper).
What insurance does Dr. Raymond J. Chan accept?
Dr. Chan is in network with 4 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Kaiser Permanente. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
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