Dr. Thomas Gian Berbos, MD

  • Helena, MT
  • Ophthalmologist
NPI1710963517PAC ID2163445370
Medicare services, 2024
29,258
Medicare patients, 2024
1,920
Part D claims, 2024
1,855
MIPS score, 2024
95
Hospital affiliations
1
Practice address
2475 Broadway, Helena, MT 59601
Practice phone
Call (406) 442-2480
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

See all 3 affiliations

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Dr. Thomas Gian Berbos is an ophthalmologist in Helena, Montana

Dr. Berbos practices at St. Peter's Health Regional Medical Center in Helena, Montana, part of St. Peter's Health.

Dr. Berbos' NPI, 1710963517, was assigned on December 22, 2005. Dr. Berbos graduated from Vanderbilt University School of Medicine in 1995. Dr. Berbos holds Montana license 10805.

NPI and contact details
Medicare PAC ID
2163445370
NPI enumeration date
December 22, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(406) 442-2480
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
57
Medical school graduation
1995

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

Dr. Thomas Gian Berbos practices at St. Peter's Health Regional Medical Center in Helena, Montana

Dr. Berbos' primary practice is St. Peter's Health Regional Medical Center, at 2475 Broadway, Helena, MT 59601 in Lewis And Clark County. The practice phone is (406) 442-2480.

Source: Dmand AI Affiliation Data

Dr. Thomas Gian Berbos is affiliated with 2 sites of care and 1 medical group

Dr. Berbos' primary practice is St. Peter's Health Regional Medical Center in Helena, Montana, part of St. Peter's Health. Dmand AI also links Dr. Berbos to 1 group practice or clinic and 1 medical group, each named with a free account.

See all 3 affiliations for Dr. Berbos

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

Dmand AI tracks the EHR system at Dr. Thomas Gian Berbos' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Berbos practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
St. Peter's Health Regional Medical CenterAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Thomas Gian Berbos is one of 48 ophthalmologists in Montana

Ophthalmology is Dr. Berbos' primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Berbos is licensed in Montana.

Specialties and state licenses

  • Ophthalmology, MontanaPrimaryLicense 10805 · taxonomy 207W00000X

Ophthalmologists near Dr. Berbos

Counts of ophthalmologists 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 Gian Berbos billed Medicare for 29,258 services in 2024

CMS data shows 29,258 Medicare services from Dr. Berbos across 24 procedure codes in 2024, for 1,920 Medicare patients. Medicare paid $3,438,763 for them.

Medicare services, 202429,258
Medicare patients1,920
Paid by Medicare$3.4M
Procedure codes24

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

  • 2023
  • 2024
Drugs given in the office
2023: 13,2562024: 20,63356%
Tests and treatments
2023: 5,9442024: 6,4128%
Surgery
2023: 1,6932024: 1,90513%
Office and hospital visits
2023: 2752024: 2885%
Imaging
2023: 272024: 2026%

Where Dr. Berbos' Medicare services took place, 2024

  • In an office29,05399%
  • In a facility2051%

Dr. Berbos compared with the Montana median for ophthalmologists, 2024

  • Dr. Berbos
  • Montana median
Medicare services
29,258vs 2,68610.9 times
Medicare patients
1,920vs 8152.4 times
Part D claims
1,737vs 5163.4 times

Medians across 53 ophthalmologists in Montana with Dmand AI profiles that report each measure.

Dr. Berbos' 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. Berbos

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

Dr. Thomas Gian Berbos treated 1,920 Medicare patients in 2024, average age 76

CMS counts 1,920 Medicare patients who saw Dr. Berbos in 2024. The largest group is 65 to 74, with 815 patients. 63% of them have high blood pressure, and 56% have high cholesterol. 5% are also on Medicaid. Their average risk score is 0.97, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Berbos' median patient age at 77, with 62% women.

Medicare patients, 20241,920
Average age76
Average risk score0.97
Also on Medicaid5%

Dr. Berbos' Medicare patients by age, 2024

Dr. Berbos' Medicare patients by sex, 2024

  • Women1,20063%
  • Men72038%

Chronic conditions among Dr. Berbos' Medicare patients, 2024

  1. High blood pressure63%
  2. High cholesterol56%
  3. Arthritis43%
  4. Diabetes22%
  5. Osteoporosis20%
  6. Mood disorders19%
  7. Anxiety17%
  8. Depression17%

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

Dr. Berbos' patients across all payers

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

Patient panel by age, all payers

Median age 77

Patient panel by sex, all payers

  • Women62%
  • Men38%

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

Dr. Thomas Gian Berbos wrote 1,855 Medicare Part D claims in 2024

In 2024, Dr. Berbos wrote 1,855 Medicare Part D claims for 441 patients. 51% of them were for generic drugs. CMS names the drug for 1,737 of them, across 21 drugs with 11 or more claims each, at $228,922 in total drug cost. In 2023, CMS named 1,453 claims across 19 drugs.

Part D claims, 20241,855
Drugs named by CMS21
Total drug cost$228,922
Part D patients441

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

  • Generic941 claims51%
  • Brand-name914 claims49%

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

  • Antibiotics2%38 of 1,855 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: 1,4532024: 1,73720%

Drugs named by CMS: 21 in 2024, 19 in 2023.

See all prescribing by Dr. Berbos

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. Thomas Gian Berbos scored 95 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Berbos for performance year 2024, reported as part of a group. Dr. Berbos accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 300 procedures of cataract surgery by Dr. Berbos, more than 89% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Dr. Berbos' MIPS scores, performance year 2024

  • 95of 100Final score
  • 100of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 85of 100Cost

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

Where Dr. Berbos ranks in Medicare procedure volume

Cataract surgery
89th percentile300 procedures

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

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. Thomas Gian Berbos received $4,647 in industry payments from 2016 to 2025

CMS Open Payments shows 26 general payments to Dr. Berbos from 14 drug and device companies from 2016 to 2025. Debt forgiveness make up the largest share, 72% of the total. Carl Zeiss Meditec, Inc. paid the most, $3,425.

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

General payments to Dr. Berbos by kind, 2016 to 2025

$4.6Kin total
  • Debt forgiveness$3,33672%
  • Food and beverage$1,06423%
  • Education$2004%
  • Travel and lodging$281%
  • Gifts$190%

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

Share is of all general payments to this clinician.

See all payments to Dr. Berbos

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

Dr. Thomas Gian Berbos graduated from Vanderbilt University School of Medicine

Dr. Berbos graduated from Vanderbilt University School of Medicine in 1995.

  1. Medical schoolVanderbilt University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Thomas Gian Berbos'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 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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile 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 Gian Berbos

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 Gian Berbos' NPI number?

Dr. Thomas Gian Berbos' NPI number is 1710963517. It was assigned on December 22, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Thomas Gian Berbos?

Dr. Thomas Gian Berbos is an ophthalmologist in Helena, Montana. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).

Where does Dr. Thomas Gian Berbos practice?

Dr. Berbos practices at 2475 Broadway, Helena, MT 59601. Dr. Berbos' primary practice is St. Peter's Health Regional Medical Center in Helena, Montana, part of St. Peter's Health. Dmand AI also links Dr. Berbos to 1 group practice or clinic and 1 medical group.

What is Dr. Thomas Gian Berbos' office phone number?

The practice phone on file for Dr. Berbos is (406) 442-2480.

What is Dr. Thomas Gian Berbos' medical license number?

Dr. Berbos holds Montana license 10805.

Which hospitals is Dr. Thomas Gian Berbos affiliated with?

Dr. Berbos practices at St. Peter's Health Regional Medical Center in Helena, Montana.

Does Dr. Thomas Gian Berbos accept Medicare?

Yes. CMS data shows Dr. Berbos billed Medicare for 29,258 services in 2024, and Dr. Berbos accepts Medicare assignment.

What is Dr. Thomas Gian Berbos' MIPS score?

Dr. Berbos' MIPS final score for performance year 2024 is 95 out of 100, reported as part of a group.

How many Medicare patients does Dr. Thomas Gian Berbos see?

CMS counts 1,920 Medicare patients who saw Dr. Berbos in 2024, with an average age of 76.

What services does Dr. Thomas Gian Berbos bill to Medicare?

In 2024, Dr. Berbos' most billed Medicare services were injected or infused drug (J2777), injected or infused drug (J0178) and injected or infused drug (J0177).

Show 4 more questionsShow fewer questions

Where did Dr. Thomas Gian Berbos go to medical school?

Dr. Berbos graduated from Vanderbilt University School of Medicine in 1995.

What drugs does Dr. Thomas Gian Berbos prescribe most?

In 2024 Medicare Part D data, Dr. Berbos' most prescribed drugs by claims were Latanoprost, Erythromycin and Prednisolone Acetate.

Has Dr. Thomas Gian Berbos received payments from drug or device companies?

CMS Open Payments shows $4,647 in general payments to Dr. Berbos from 14 companies from 2016 to 2025. The largest total came from Carl Zeiss Meditec, Inc.

How long has Dr. Thomas Gian Berbos been practicing?

Dr. Berbos graduated from medical school in 1995, 31 years ago.

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