Dr. Stephen James Hopkins, MD

  • Sonora, CA
  • General surgeon
NPI1265498539PAC ID5294797569
Medicare services, 2024
4,816
Medicare patients, 2024
441
Part D claims, 2024
192
Publications
1
MIPS score, 2024
85
Practice address
680 Guzzi Ln, Sonora, CA 95370-5288
Practice phone
Call (209) 532-5528
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Stephen J Hopkins, MD

Physician office · Sonora, California

See all 7 affiliations

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Dr. Stephen James Hopkins is a general surgeon in Sonora, California

Dr. Hopkins practices at Stephen J Hopkins, MD in Sonora, California.

Dr. Hopkins' NPI, 1265498539, was assigned on April 25, 2006. Dr. Hopkins graduated from Tulane School of Medicine in 1990. Dr. Hopkins holds California license A50509.

NPI and contact details
Medicare PAC ID
5294797569
NPI enumeration date
April 25, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(209) 532-5528
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
62
Medical school graduation
1990

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Stephen James Hopkins practices at Stephen J Hopkins, MD in Sonora, California

Dr. Hopkins' primary practice is Stephen J Hopkins, MD, at 680 Guzzi Ln, Sonora, CA 95370-5288. The practice phone is (209) 532-5528.

  • Stephen J Hopkins, MD
    680 Guzzi Ln, Sonora, CA 95370-5288Phone(209) 532-5528

Source: Dmand AI Affiliation Data

Dr. Stephen James Hopkins is affiliated with 4 sites of care and 3 medical groups

Dr. Hopkins' primary practice is Stephen J Hopkins, MD in Sonora, California. Dr. Hopkins is also affiliated with Banner Lassen Medical Center. The medical group on file is Adventist Health Sonora. Dmand AI also links Dr. Hopkins to 2 more group practices and clinics and 2 medical groups, each named with a free account.

See all 7 affiliations for Dr. Hopkins

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Stephen James Hopkins' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hopkins practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Stephen J Hopkins, MDAvailable with a free account
+3 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Stephen James Hopkins is one of 2,926 general surgeons in California

Surgery is Dr. Hopkins' primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Hopkins is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Hopkins' licenses on file in 3 states: California, Louisiana and Georgia.

Specialties and state licenses

  • Surgery, CaliforniaPrimaryLicense A50509 · 1992 to 2027 · taxonomy 208600000X
  • Louisiana license1990 to 2003
  • Georgia license1996 to 2001

Clinical focus

Dmand AI lists abdominal adhesion surgery, gallbladder removal, groin hernia surgery, hemorrhoids and varicose vein treatment among the conditions Dr. Hopkins treats.

General surgeons near Dr. Hopkins

Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.

2,926general surgeons in California
8general surgeons in Sonora

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Stephen James Hopkins billed Medicare for 4,816 services in 2024

CMS data shows 4,816 Medicare services from Dr. Hopkins across 18 procedure codes in 2024, for 441 Medicare patients. Medicare paid $248,588 for them.

Medicare services, 20244,816
Medicare patients441
Paid by Medicare$248,588
Procedure codes18

Dr. Hopkins' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 2,0542024: 2,77735%
Surgery
2023: 1,2532024: 1,55024%
Tests and treatments
2023: 4762024: 4893%

Where Dr. Hopkins' Medicare services took place, 2024

  • In an office4,77099%
  • In a facility461%

Dr. Hopkins compared with the California median for general surgeons, 2024

  • Dr. Hopkins
  • California median
Medicare services
4,816vs 16629.0 times
Medicare patients
441vs 1213.6 times
Part D claims
142vs 344.2 times

Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.

Dr. Hopkins' 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.

See all procedures by Dr. Hopkins

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hopkins and other general surgeons in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Stephen James Hopkins treated 441 Medicare patients in 2024, average age 75

CMS counts 441 Medicare patients who saw Dr. Hopkins in 2024. The largest group is 65 to 74, with 168 patients. 75% of them have high blood pressure, and 73% have high cholesterol. 36% are also on Medicaid. Their average risk score is 2.04, 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. Hopkins' median patient age at 62, with 48% women.

Medicare patients, 2024441
Average age75
Average risk score2.04
Also on Medicaid36%

Dr. Hopkins' Medicare patients by age, 2024

Dr. Hopkins' Medicare patients by sex, 2024

  • Women20446%
  • Men23754%

Chronic conditions among Dr. Hopkins' Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol73%
  3. Arthritis55%
  4. Diabetes44%
  5. Ischemic heart disease33%
  6. Chronic kidney disease31%
  7. Atrial fibrillation29%
  8. Mood disorders29%

Share of Medicare patients with each condition. A patient can have several.

Dr. Hopkins' 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

  • Women48%
  • Men51%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Stephen James Hopkins wrote 192 Medicare Part D claims in 2024

In 2024, Dr. Hopkins wrote 192 Medicare Part D claims for 85 patients. 97% of them were for generic drugs. CMS names the drug for 142 of them, across 6 drugs with 11 or more claims each, at $3,975 in total drug cost. In 2023, CMS named 131 claims across 5 drugs.

Part D claims, 2024192
Drugs named by CMS6
Total drug cost$3,975
Part D patients85

Dr. Hopkins' Part D claims by kind of drug, 2024

  • Generic186 claims97%
  • Brand-name and other6 claims3%

Dr. Hopkins' 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. Hopkins' Part D claims, 2024

  • Opioids10%20 of 192 claims
  • Antibiotics80%154 of 192 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: 1312024: 1428%

Drugs named by CMS: 6 in 2024, 5 in 2023.

See all prescribing by Dr. Hopkins

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. Stephen James Hopkins scored 85 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Hopkins for performance year 2024, reported as part of a group. Dr. Hopkins accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 12 procedures of removal of tissue by Dr. Hopkins, more than 63% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Dr. Hopkins' MIPS scores, performance year 2024

  • 85of 100Final score
  • 81.7of 100Quality
  • 97of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 67of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Hopkins ranks in Medicare procedure volume

Colonoscopy
51st percentile26 procedures
Upper gastrointestinal (GI) endoscopy for acid reflux
46th percentile15 procedures
Removal of tissue
63rd percentile12 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)

Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Stephen James Hopkins has 1 publication on record

Dmand AI links 1 paper to Dr. Hopkins.

Papers1

Recent publications by Dr. Hopkins

See all 1 publications and co-authors

See who Dr. Hopkins researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hopkins works with, so you can find a warm path to the right general surgeons.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Stephen James Hopkins received $1,915 in industry payments from 2016 to 2025

CMS Open Payments shows 69 general payments to Dr. Hopkins from 10 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Smith & Nephew, Inc. paid the most, $1,161.

General payments to Dr. Hopkins by program year, 2016 to 2025

Companies that paid Dr. Hopkins the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Hopkins

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Stephen James Hopkins has 1 award and honors on record

Dmand AI lists 1 award for Dr. Hopkins.

Awards and honors for Dr. Hopkins

  1. Undated
    • ACS Fellow

Source: Dmand AI Professional Profile Data

Dr. Stephen James Hopkins graduated from Tulane School of Medicine

Dr. Hopkins graduated from Tulane School of Medicine in 1990. Dr. Hopkins is a member of ACP, ACS, American Venous Forum, California Medical Association, Society for Vascular Ultrasound and Society of American Gastrtointestinal and Endoscopic Surgeons.

  1. Medical schoolTulane School of Medicine
  2. Board certified in surgeryAmerican Board of Surgery

Source: Dmand AI Professional Profile Data

Dr. Stephen James Hopkins accepts plans from 14 insurance carriers

Dr. Hopkins is in network with 14 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • Alliant Health Plans
  • +6 more carriersWith a free account

Plan types Dr. Hopkins accepts, by number of carriers

  1. PPO9
  2. Medicare8
  3. HMO6
  4. POS5
  5. EPO4

Source: Dmand AI Insurance Network Data

Sources for Dr. Stephen James Hopkins's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Stephen James Hopkins

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 James Hopkins' NPI number?

Dr. Stephen James Hopkins' NPI number is 1265498539. It was assigned on April 25, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Stephen James Hopkins?

Dr. Stephen James Hopkins is a general surgeon in Sonora, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).

Where does Dr. Stephen James Hopkins practice?

Dr. Hopkins practices at 680 Guzzi Ln, Sonora, CA 95370-5288. Dr. Hopkins' primary practice is Stephen J Hopkins, MD in Sonora, California. Dmand AI also links Dr. Hopkins to 2 group practices and clinics and 2 medical groups.

What is Dr. Stephen James Hopkins' office phone number?

The practice phone on file for Dr. Hopkins is (209) 532-5528.

What is Dr. Stephen James Hopkins' medical license number?

Dr. Hopkins holds California license A50509, one of the licenses on file in 3 states.

Which states has Dr. Stephen James Hopkins been licensed in?

Dmand AI has state licenses on file for Dr. Hopkins in California (1992 to 2027), Louisiana (1990 to 2003) and Georgia (1996 to 2001).

Which hospitals is Dr. Stephen James Hopkins affiliated with?

Dr. Hopkins is affiliated with Banner Lassen Medical Center.

What medical group is Dr. Stephen James Hopkins part of?

Dr. Hopkins is linked to Adventist Health Sonora. Dmand AI links Dr. Hopkins to 2 more medical groups.

Does Dr. Stephen James Hopkins accept Medicare?

Yes. CMS data shows Dr. Hopkins billed Medicare for 4,816 services in 2024, and Dr. Hopkins accepts Medicare assignment.

What is Dr. Stephen James Hopkins' MIPS score?

Dr. Hopkins' MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.

Show 9 more questionsShow fewer questions

How many Medicare patients does Dr. Stephen James Hopkins see?

CMS counts 441 Medicare patients who saw Dr. Hopkins in 2024, with an average age of 75.

Is Dr. Stephen James Hopkins board certified?

Yes. Dr. Hopkins is board certified in surgery by the American Board of Surgery.

What services does Dr. Stephen James Hopkins bill to Medicare?

In 2024, Dr. Hopkins' most billed Medicare services were office visit, established patient (99213), surgery: skin and soft tissue (11042) and surgery: skin and soft tissue (11043).

Where did Dr. Stephen James Hopkins go to medical school?

Dr. Hopkins graduated from Tulane School of Medicine in 1990.

What drugs does Dr. Stephen James Hopkins prescribe most?

In 2024 Medicare Part D data, Dr. Hopkins' most prescribed drugs by claims were Sulfamethoxazole-Trimethoprim, Cephalexin and Linezolid.

Has Dr. Stephen James Hopkins received payments from drug or device companies?

CMS Open Payments shows $1,915 in general payments to Dr. Hopkins from 10 companies from 2016 to 2025. The largest total came from Smith & Nephew, Inc.

How long has Dr. Stephen James Hopkins been practicing?

Dr. Hopkins graduated from medical school in 1990, 36 years ago.

Does Dr. Stephen James Hopkins do research?

Dmand AI links 1 publication to Dr. Hopkins.

What insurance does Dr. Stephen James Hopkins accept?

Dr. Hopkins is in network with 14 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

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