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Bone PlatesFracture Fixation, InternalHand Strength
Dr. Stephen J. Huffaker, MD, PhD
NPI1861713000PAC ID7810154093
- Part D claims, 2024
- 94
- Publications
- 6
- Hospital affiliations
- 2
- Industry payments
- $1,204
- Medical group
- 1
- Practice address
- 901 Nevin Ave, Richmond, CA 94801
- Practice phone
- Call (510) 307-1555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Richmond Medical Center
Richmond, California
Find Dr. Huffaker'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. Stephen J. Huffaker is an orthopedic surgeon in Richmond, California
Dr. Huffaker practices at Richmond Medical Center in Richmond, California.
Dr. Huffaker's NPI, 1861713000, was assigned on June 22, 2010. Dr. Huffaker graduated from Harvard Medical School in 2010. Dr. Huffaker holds California license A135749.
NPI and contact details
- NPI
- 1861713000NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7810154093
- NPI enumeration date
- June 22, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 307-1555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen J. Huffaker practices at Richmond Medical Center in Richmond, California
Dr. Huffaker's primary practice is Richmond Medical Center, at 901 Nevin Ave, Richmond, CA 94801 in Contra Costa County. The practice phone is (510) 307-1555.
- Richmond Medical Center901 Nevin Ave, Richmond, CA 94801 · Contra Costa CountyPhone(510) 307-1555
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Stephen J. Huffaker is affiliated with 4 sites of care and 1 medical group
Dr. Huffaker's primary practice is Richmond Medical Center in Richmond, California. Dr. Huffaker is also affiliated with Walnut Creek Medical Center. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Huffaker to 1 more hospital and 1 group practice or clinic, each named with a free account.
Richmond Medical CenterPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Stephen J. Huffaker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Huffaker practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Richmond Medical Center | 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. Stephen J. Huffaker is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Huffaker's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Huffaker is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dmand AI has Dr. Huffaker's licenses on file in 2 states: California and Massachusetts.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
- Massachusetts license
Orthopedic surgeons near Dr. Huffaker
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. Stephen J. Huffaker's patients have a median age of 62
Across all payers, Dmand AI patient panel data puts Dr. Huffaker's median patient age at 62, with 54% women.
Dr. Huffaker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women54%
- Men45%
Source: Dmand AI Patient Panel Data
Dr. Stephen J. Huffaker wrote 94 Medicare Part D claims in 2024
In 2024, Dr. Huffaker wrote 94 Medicare Part D claims for 52 patients. 100% of them were for generic drugs. CMS names the drug for 51 of them, across 2 drugs with 11 or more claims each, at $471 in total drug cost. In 2023, CMS named 61 claims across 3 drugs.
Part D claims, 202494
Drugs named by CMS2
Total drug cost$471
Part D patients52
Dr. Huffaker'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. Huffaker's Part D claims, 2024
- Opioids51%48 of 94 claims
- Antibiotics23%22 of 94 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: 612024: 5116%
Drugs named by CMS: 2 in 2024, 3 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. Stephen J. Huffaker takes part in Medicare
Dr. Huffaker 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. Stephen J. Huffaker has 6 publications on record
Dmand AI links 6 papers to Dr. Huffaker, published from 2006 to 2014. The most frequent topics are Cerebral Cortex, Gene Expression Regulation and Prefrontal Cortex. Dr. Huffaker's most frequent co-author is Philip E. Blazar, MD.
Papers6
Years published2006 to 2014
Dr. Huffaker's papers by year, 2006 to 2014
Topics Dr. Huffaker writes about most
- Cerebral Cortex
- Gene Expression Regulation
- Prefrontal Cortex
- RNA, Messenger
- Schizophrenia
- Synaptic Transmission
Dr. Huffaker's most frequent co-authors
Recent publications by Dr. Huffaker
Cerebral CortexCognitionERG1 Potassium Channel
Int J Neuropsychopharmacol
AmidohydrolasesAspartic AcidCadaver
Bipolar DisorderCerebral CortexFrontal Lobe
See who Dr. Huffaker researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Huffaker 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. Stephen J. Huffaker received $1,204 in industry payments from 2016 to 2024
CMS Open Payments shows 14 general payments to Dr. Huffaker from 2 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 51% of the total. Zimmer Biomet Holdings, Inc. paid the most, $1,183.
General payments to Dr. Huffaker by program year, 2016 to 2024
General payments to Dr. Huffaker by kind, 2016 to 2024
$1.2Kin total
- Food and beverage$61951%
- Travel and lodging$58549%
Companies that paid Dr. Huffaker the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stephen J. Huffaker graduated from Harvard Medical School
Dr. Huffaker graduated from Harvard Medical School in 2010.
- Medical school
- Board certified in orthopaedic surgery
Source: Dmand AI Professional Profile Data
Dr. Stephen J. Huffaker accepts plans from 2 insurance carriers
Dr. Huffaker is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Huffaker accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Stephen J. Huffaker'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 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. Stephen J. Huffaker
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. Stephen J. Huffaker's NPI number?
Dr. Stephen J. Huffaker's NPI number is 1861713000. It was assigned on June 22, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen J. Huffaker?
Dr. Stephen J. Huffaker is an orthopedic surgeon in Richmond, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Stephen J. Huffaker practice?
Dr. Huffaker practices at 901 Nevin Ave, Richmond, CA 94801. Dr. Huffaker's primary practice is Richmond Medical Center in Richmond, California. Dmand AI also links Dr. Huffaker to 1 hospital and 1 group practice or clinic.
What is Dr. Stephen J. Huffaker's office phone number?
The practice phone on file for Dr. Huffaker is (510) 307-1555.
What is Dr. Stephen J. Huffaker's medical license number?
Dr. Huffaker holds California license A135749, one of the licenses on file in 2 states.
Which states has Dr. Stephen J. Huffaker been licensed in?
Dmand AI has state licenses on file for Dr. Huffaker in California (2015 to 2026) and Massachusetts (2010 to 2015).
Which hospitals is Dr. Stephen J. Huffaker affiliated with?
Dr. Huffaker is affiliated with Walnut Creek Medical Center. Dmand AI links Dr. Huffaker to 1 more hospital.
What medical group is Dr. Stephen J. Huffaker part of?
Dr. Huffaker is linked to The Permanente Medical Group, Inc.
Does Dr. Stephen J. Huffaker accept Medicare?
Yes. CMS lists Dr. Huffaker as accepting Medicare assignment.
Is Dr. Stephen J. Huffaker board certified?
Yes. Dr. Huffaker is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.
Show 7 more questionsShow fewer questions
Where did Dr. Stephen J. Huffaker go to medical school?
Dr. Huffaker graduated from Harvard Medical School in 2010.
What drugs does Dr. Stephen J. Huffaker prescribe most?
In 2024 Medicare Part D data, Dr. Huffaker's most prescribed drugs by claims were Oxycodone HCl and Amoxicillin.
Has Dr. Stephen J. Huffaker received payments from drug or device companies?
CMS Open Payments shows $1,204 in general payments to Dr. Huffaker from 2 companies from 2016 to 2024. The largest total came from Zimmer Biomet Holdings, Inc.
How long has Dr. Stephen J. Huffaker been practicing?
Dr. Huffaker graduated from medical school in 2010, 16 years ago.
Does Dr. Stephen J. Huffaker do research?
Dmand AI links 6 publications to Dr. Huffaker, published from 2006 to 2014.
Who does Dr. Stephen J. Huffaker publish with?
Dr. Huffaker's most frequent co-authors are Philip E. Blazar, MD (1 shared paper).
What insurance does Dr. Stephen J. Huffaker accept?
Dr. Huffaker is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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