Dr. Thomas Lee Bosshardt, MD

  • Greenfield, CA
  • General surgeon
NPI1104958156PAC ID2163497413
Medicare services, 2022
114
Part D claims, 2024
11
Publications
2
Hospital affiliations
1
Industry payments
$1,921
Practice address
467 El Camino Road, Greenfield, CA 93927
Practice phone
Call (831) 674-0112
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Albert and Donna Oliveira Clinic - Greenfield

Rural Health Clinic - Hospital-Owned · Greenfield, California

See all 6 affiliations

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Dr. Thomas Lee Bosshardt is a general surgeon in Greenfield, California

Dr. Bosshardt practices at Albert and Donna Oliveira Clinic - Greenfield in Greenfield, California.

Dr. Bosshardt's NPI, 1104958156, was assigned on March 12, 2007. Dr. Bosshardt graduated from David Geffen School of Medicine at UCLA in 1990. Dr. Bosshardt's California license number on file is G78405.

NPI and contact details
Medicare PAC ID
2163497413
NPI enumeration date
March 12, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(831) 674-0112
Professional email
Get email
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. Thomas Lee Bosshardt practices at Albert and Donna Oliveira Clinic - Greenfield in Greenfield, California

Dr. Bosshardt's primary practice is Albert and Donna Oliveira Clinic - Greenfield, at 467 El Camino Road, Greenfield, CA 93927. The practice phone is (831) 674-0112.

  • Albert and Donna Oliveira Clinic - Greenfield
    467 El Camino Road, Greenfield, CA 93927Phone(831) 674-0112

Source: Dmand AI Affiliation Data

Dr. Thomas Lee Bosshardt is affiliated with 4 sites of care and 2 medical groups

Dr. Bosshardt's primary practice is Albert and Donna Oliveira Clinic - Greenfield in Greenfield, California. Dr. Bosshardt is also affiliated with Mee Memorial Hospital. The medical group on file is Mee Memorial Healthcare System. Dmand AI also links Dr. Bosshardt to 2 more group practices and clinics and 1 medical group, each named with a free account. Dr. Bosshardt's employer is on file too: a rural health clinic (rhc).

See all 6 affiliations for Dr. Bosshardt

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Thomas Lee Bosshardt's practice

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

EHR by site
SiteEHR vendor and product
Albert and Donna Oliveira Clinic - GreenfieldAvailable with a free account
+3 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Thomas Lee Bosshardt is one of 2,926 general surgeons in California

Surgery is Dr. Bosshardt's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Bosshardt is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Bosshardt's licenses on file in 4 states: California, Montana, Missouri and Virginia.

Specialties and state licenses

  • Surgery, CaliforniaPrimaryLicense G78405 · 1994 to 2025 · taxonomy 208600000X
  • Montana license2024 to 2026
  • Missouri license2024 to 2025
  • Virginia license1991 to 2002

Clinical focus

Dmand AI lists abdominal hernia repair surgery, appendectomy, chest trauma, colonoscopy, colon removal, gallbladder removal, hemorrhoids and non-surgical back problems among the conditions Dr. Bosshardt treats.

General surgeons near Dr. Bosshardt

Counts of general 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. Thomas Lee Bosshardt billed Medicare for 114 services in 2022

CMS data shows 114 Medicare services from Dr. Bosshardt across 6 procedure codes in 2022. Medicare paid $17,299 for them.

Medicare services, 2022114
Paid by Medicare$17,299
Procedure codes6

Dr. Bosshardt's Medicare services by type, 2021 to 2022

  • 2021
  • 2022
Office and hospital visits
2021: 1412022: 10327%
Surgery
2021: 152022: 1127%

Where Dr. Bosshardt's Medicare services took place, 2022

  • In an office10390%
  • In a facility1110%

Dr. Bosshardt compared with the California median for general surgeons, 2022

  • Dr. Bosshardt
  • California median
Medicare services
114vs 16631% below
Part D claims
11vs 3468% below

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

Dr. Bosshardt's most billed Medicare procedure codes, 2022

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. Bosshardt

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Bosshardt 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. Thomas Lee Bosshardt's patients have a median age of 52

Across all payers, Dmand AI patient panel data puts Dr. Bosshardt's median patient age at 52, with 49% women.

Dr. Bosshardt's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 52

Patient panel by sex, all payers

  • Women49%
  • Men51%

Source: Dmand AI Patient Panel Data

Dr. Thomas Lee Bosshardt wrote 11 Medicare Part D claims in 2024

In 2024, Dr. Bosshardt wrote 11 Medicare Part D claims for 11 patients. They cover 1 drug, with $111 in total drug cost. In 2022, CMS named 82 claims across 4 drugs.

Part D claims, 202411
Drugs named by CMS1
Total drug cost$111
Part D patients11

Dr. Bosshardt's most prescribed drugs by claims, 2023

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, 2022 to 2023

  • 2022
  • 2023
Claims for drugs CMS names
2022: 822023: 1187%

Drugs named by CMS: 1 in 2023, 4 in 2022.

See all prescribing by Dr. Bosshardt

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. Thomas Lee Bosshardt takes part in Medicare

Dr. Bosshardt accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Thomas Lee Bosshardt has 2 publications on record

Dmand AI links 2 papers to Dr. Bosshardt.

Papers2

Recent publications by Dr. Bosshardt

See all 2 publications and co-authors

See who Dr. Bosshardt researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Bosshardt 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. Thomas Lee Bosshardt received $1,921 in industry payments from 2017 to 2023

CMS Open Payments shows 18 general payments to Dr. Bosshardt from 7 drug and device companies from 2017 to 2023. Travel and lodging make up the largest share, 62% of the total. Medical Device Business Services, Inc. paid the most, $836.

General payments to Dr. Bosshardt by program year, 2017 to 2023

General payments to Dr. Bosshardt by kind, 2017 to 2023

$1.9Kin total
  • Travel and lodging$1,19862%
  • Food and beverage$72338%

Companies that paid Dr. Bosshardt the most, 2017 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Bosshardt

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

Dr. Thomas Lee Bosshardt graduated from David Geffen School of Medicine at UCLA

Dr. Bosshardt graduated from David Geffen School of Medicine at UCLA in 1990.

  1. Medical schoolDavid Geffen School of Medicine at UCLA
  2. Board certified in surgeryAmerican Board of Surgery

Source: Dmand AI Professional Profile Data

Dr. Thomas Lee Bosshardt accepts plans from 10 insurance carriers

Dr. Bosshardt is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • Aspirus Health Plan
  • Blue Cross and Blue Shield of Kansas City
  • +2 more carriersWith a free account

Plan types Dr. Bosshardt accepts, by number of carriers

  1. Medicare7
  2. PPO7
  3. POS4
  4. HMO3
  5. EPO2

Source: Dmand AI Insurance Network Data

Sources for Dr. Thomas Lee Bosshardt'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 DataDmand AI Org Hierarchy 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 Data
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)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)
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. Thomas Lee Bosshardt

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. Thomas Lee Bosshardt's NPI number?

Dr. Thomas Lee Bosshardt's NPI number is 1104958156. It was assigned on March 12, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Thomas Lee Bosshardt?

Dr. Thomas Lee Bosshardt is a general surgeon in Greenfield, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).

Where does Dr. Thomas Lee Bosshardt practice?

Dr. Bosshardt practices at 467 El Camino Road, Greenfield, CA 93927. Dr. Bosshardt's primary practice is Albert and Donna Oliveira Clinic - Greenfield in Greenfield, California. Dmand AI also links Dr. Bosshardt to 2 group practices and clinics and 1 medical group.

What is Dr. Thomas Lee Bosshardt's office phone number?

The practice phone on file for Dr. Bosshardt is (831) 674-0112.

What is Dr. Thomas Lee Bosshardt's medical license number?

Dr. Bosshardt's California license number on file is G78405, one of the licenses on file in 4 states.

Which states has Dr. Thomas Lee Bosshardt been licensed in?

Dmand AI has state licenses on file for Dr. Bosshardt in California (1994 to 2025), Montana (2024 to 2026), Missouri (2024 to 2025) and Virginia (1991 to 2002).

Which hospitals is Dr. Thomas Lee Bosshardt affiliated with?

Dr. Bosshardt is affiliated with Mee Memorial Hospital.

What medical group is Dr. Thomas Lee Bosshardt part of?

Dr. Bosshardt is linked to Mee Memorial Healthcare System. Dmand AI links Dr. Bosshardt to 1 more medical group.

Does Dr. Thomas Lee Bosshardt accept Medicare?

Yes. CMS data shows Dr. Bosshardt billed Medicare for 114 services in 2022, and Dr. Bosshardt accepts Medicare assignment.

Is Dr. Thomas Lee Bosshardt board certified?

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

Show 7 more questionsShow fewer questions

What services does Dr. Thomas Lee Bosshardt bill to Medicare?

In 2022, Dr. Bosshardt's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and office visit, new patient (99204).

Where did Dr. Thomas Lee Bosshardt go to medical school?

Dr. Bosshardt graduated from David Geffen School of Medicine at UCLA in 1990.

What drugs does Dr. Thomas Lee Bosshardt prescribe most?

In 2023 Medicare Part D data, Dr. Bosshardt's most prescribed drugs by claims were Hydrocodone-Acetaminophen.

Has Dr. Thomas Lee Bosshardt received payments from drug or device companies?

CMS Open Payments shows $1,921 in general payments to Dr. Bosshardt from 7 companies from 2017 to 2023. The largest total came from Medical Device Business Services, Inc.

How long has Dr. Thomas Lee Bosshardt been practicing?

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

Does Dr. Thomas Lee Bosshardt do research?

Dmand AI links 2 publications to Dr. Bosshardt.

What insurance does Dr. Thomas Lee Bosshardt accept?

Dr. Bosshardt is in network with 10 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

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