Dr. Sumner S. Seibert, MD
- Medicare services, 2019
- 174
- Part D claims, 2020
- 11
- Industry payments
- $450
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 3903 Lone Tree Way, Antioch, CA 94509
- Practice phone
- Call (925) 754-5254
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Summer S. Seibert MD Inc.
Multi-specialty group site · Antioch, California
Find Dr. Seibert'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. Sumner S. Seibert is an orthopedic surgeon in Antioch, California
Dr. Seibert practices at Summer S. Seibert MD Inc. in Antioch, California.
Dr. Seibert's NPI, 1255350534, was assigned on July 18, 2006. Dr. Seibert graduated from University of Illinois College of Medicine - Chicago in 1968. Dr. Seibert's California license number on file is G16830.
- NPI
- 1255350534NPI Registry (opens in a new tab)
- NPI enumeration date
- July 18, 2006
- NPI status
- Active
- Practice phone
- (925) 754-5254
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 84
- Medical school graduation
- 1968
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sumner S. Seibert practices at Summer S. Seibert MD Inc. in Antioch, California
Dr. Seibert's primary practice is Summer S. Seibert MD Inc., at 3903 Lone Tree Way, Antioch, CA 94509. The practice phone is (925) 754-5254.
- Summer S. Seibert MD Inc.3903 Lone Tree Way, Antioch, CA 94509Phone(925) 754-5254
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sumner S. Seibert is affiliated with 1 site of care and 1 medical group
Dr. Seibert's primary practice is Summer S. Seibert MD Inc. in Antioch, California. The medical group on file is Adam Brooks, MD, Inc.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Sumner S. Seibert's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Seibert practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Summer S. Seibert MD Inc. | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Sumner S. Seibert is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Seibert's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Seibert is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dr. Seibert has a license on file in California.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
Orthopedic surgeons near Dr. Seibert
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. Sumner S. Seibert billed Medicare for 174 services in 2019
CMS data shows 174 Medicare services from Dr. Seibert across 6 procedure codes in 2019. Medicare paid $11,567 for them.
Dr. Seibert's Medicare services by type, 2018 to 2019
- 2018
- 2019
- Office and hospital visits
- 2018: 1542019: 10731%
- Drugs given in the office
- 2018: 812019: 4742%
- Surgery
- 2018: 342019: 2041%
Where Dr. Seibert's Medicare services took place, 2019
- In an office15690%
- In a facility1810%
Dr. Seibert compared with the California median for orthopedic surgeons, 2019
- Dr. Seibert
- California median
- Medicare services
- 174vs 68375% below
- Part D claims
- 11vs 7084% below
Medians across 1,844 orthopedic surgeons in California with Dmand AI profiles that report each measure.
Dr. Seibert's most billed Medicare procedure codes, 2019
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. Seibert?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Seibert and other orthopedic surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sumner S. Seibert's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Seibert's median patient age at 70, with 71% women.
Dr. Seibert's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women71%
- Men29%
Source: Dmand AI Patient Panel Data
Dr. Sumner S. Seibert wrote 11 Medicare Part D claims in 2020
In 2020, Dr. Seibert wrote 11 Medicare Part D claims. They cover 1 drug, with $124 in total drug cost. In 2019, CMS named 42 claims across 3 drugs.
Dr. Seibert's most prescribed drugs by claims, 2020
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, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 422020: 1174%
Drugs named by CMS: 1 in 2020, 3 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Sumner S. Seibert received $450 in industry payments from 2016 to 2021
CMS Open Payments shows 5 general payments to Dr. Seibert from 2 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $271.
General payments to Dr. Seibert by program year, 2016 to 2021
Companies that paid Dr. Seibert the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Sumner S. Seibert graduated from University of Illinois College of Medicine - Chicago
Dr. Seibert graduated from University of Illinois College of Medicine - Chicago in 1968.
- Medical school
- Board certified in orthopaedic surgery
Source: Dmand AI Professional Profile Data
Dr. Sumner S. Seibert accepts plans from 4 insurance carriers
Dr. Seibert is in network with 4 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- HCSC
Plan types Dr. Seibert accepts, by number of carriers
- Medicare4
- PPO4
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Sumner S. Seibert'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 | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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 |
| 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. Sumner S. Seibert
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. Sumner S. Seibert's NPI number?
Dr. Sumner S. Seibert's NPI number is 1255350534. It was assigned on July 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Sumner S. Seibert?
Dr. Sumner S. Seibert is an orthopedic surgeon in Antioch, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Sumner S. Seibert practice?
Dr. Seibert practices at 3903 Lone Tree Way, Antioch, CA 94509. Dr. Seibert's primary practice is Summer S. Seibert MD Inc. in Antioch, California.
What is Dr. Sumner S. Seibert's office phone number?
The practice phone on file for Dr. Seibert is (925) 754-5254.
What is Dr. Sumner S. Seibert's medical license number?
Dr. Seibert's California license number on file is G16830.
What medical group is Dr. Sumner S. Seibert part of?
Dr. Seibert is linked to Adam Brooks, MD, Inc.
Does Dr. Sumner S. Seibert accept Medicare?
Yes. CMS data shows Dr. Seibert billed Medicare for 174 services in 2019.
Is Dr. Sumner S. Seibert board certified?
Yes. Dr. Seibert is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.
What services does Dr. Sumner S. Seibert bill to Medicare?
In 2019, Dr. Seibert's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and injected or infused drug (J2690).
Where did Dr. Sumner S. Seibert go to medical school?
Dr. Seibert graduated from University of Illinois College of Medicine - Chicago in 1968.
Show 4 more questionsShow fewer questions
What drugs does Dr. Sumner S. Seibert prescribe most?
In 2020 Medicare Part D data, Dr. Seibert's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Sumner S. Seibert received payments from drug or device companies?
CMS Open Payments shows $450 in general payments to Dr. Seibert from 2 companies from 2016 to 2021. The largest total came from Stryker Corporation.
How long has Dr. Sumner S. Seibert been practicing?
Dr. Seibert graduated from medical school in 1968, 58 years ago.
What insurance does Dr. Sumner S. Seibert accept?
Dr. Seibert is in network with 4 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
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