Dr. John D. Chambers Jr., MD
- Medicare services, 2024
- 2,232
- Medicare patients, 2024
- 1,308
- Part D claims, 2024
- 3,641
- Hospital affiliations
- 6
- Industry payments
- $23,320
- Practice address
- 3100 Channing Way, Idaho Falls, ID 83403
- Practice phone
- Call (208) 529-7679
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Eastern Idaho Regional Medical Center - Unit
Acute Care Hospital-Unit · Idaho Falls, Idaho
Find Dr. Chambers' 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. John D. Chambers Jr. is a cardiologist in Idaho Falls, Idaho
Dr. Chambers practices at Eastern Idaho Regional Medical Center - Unit in Idaho Falls, Idaho.
Dr. Chambers' NPI, 1578568242, was assigned on June 17, 2005. Dr. Chambers holds Idaho license M-7163.
- NPI
- 1578568242NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3476458134
- NPI enumeration date
- June 17, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (208) 529-7679
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John D. Chambers Jr. practices at Eastern Idaho Regional Medical Center - Unit in Idaho Falls, Idaho
Dr. Chambers' primary practice is Eastern Idaho Regional Medical Center - Unit, at 3100 Channing Way, Idaho Falls, ID 83403 in Bonneville County. The practice phone is (208) 529-7679.
- Eastern Idaho Regional Medical Center - Unit3100 Channing Way, Idaho Falls, ID 83403 · Bonneville CountyPhone(208) 529-7679
Source: Dmand AI Affiliation Data
Dr. John D. Chambers Jr. is affiliated with 10 sites of care and 4 medical groups
Dr. Chambers' primary practice is Eastern Idaho Regional Medical Center - Unit in Idaho Falls, Idaho. Dr. Chambers is also affiliated with Mountain View Hospital. The medical group on file is Mountain View Hospital. Dmand AI also links Dr. Chambers to 4 more hospitals, 4 group practices and clinics and 3 medical groups, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John D. Chambers Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chambers practices, 10 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Eastern Idaho Regional Medical Center - Unit | Available with a free account |
| +9 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John D. Chambers Jr. is one of 77 cardiologists in Idaho
Cardiovascular disease is Dr. Chambers' primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Chambers is licensed in Idaho.
Specialties and state licenses
- Cardiovascular disease, IdahoPrimary
Cardiologists near Dr. Chambers
Counts of cardiologists 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. John D. Chambers Jr. billed Medicare for 2,232 services in 2024
CMS data shows 2,232 Medicare services from Dr. Chambers across 35 procedure codes in 2024, for 1,308 Medicare patients. Medicare paid $191,124 for them.
Dr. Chambers' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,4572024: 1,68516%
- Office and hospital visits
- 2023: 4562024: 23748%
- Surgery
- 2023: 1062024: 19180%
- Imaging
- 2023: 1282024: 1197%
- Drugs given in the office
- 2023: 2682024: 0100%
- Other services
- 2023: 2562024: 0100%
Where Dr. Chambers' Medicare services took place, 2024
- In an office1,00545%
- In a facility1,22755%
Dr. Chambers compared with the Idaho median for cardiologists, 2024
- Dr. Chambers
- Idaho median
- Medicare services
- 2,232vs 1,48251% above
- Medicare patients
- 1,308vs 1,16812% above
- Part D claims
- 3,377vs 1,1243.0 times
Medians across 80 cardiologists in Idaho with Dmand AI profiles that report each measure.
Dr. Chambers' 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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chambers and other cardiologists in Idaho.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John D. Chambers Jr. treated 1,308 Medicare patients in 2024, average age 76
CMS counts 1,308 Medicare patients who saw Dr. Chambers in 2024. The largest group is 75 to 84, with 554 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.49, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chambers' median patient age at 76, with 39% women.
Dr. Chambers' Medicare patients by age, 2024
Dr. Chambers' Medicare patients by sex, 2024
- Women54542%
- Men76358%
Chronic conditions among Dr. Chambers' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease56%
- Arthritis50%
- Atrial fibrillation45%
- Heart failure42%
- Diabetes38%
- Chronic kidney disease33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chambers' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women39%
- Men61%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John D. Chambers Jr. wrote 3,641 Medicare Part D claims in 2024
In 2024, Dr. Chambers wrote 3,641 Medicare Part D claims for 645 patients. 82% of them were for generic drugs. CMS names the drug for 3,377 of them, across 41 drugs with 11 or more claims each, at $520,772 in total drug cost. In 2023, CMS named 4,530 claims across 52 drugs.
Dr. Chambers' Part D claims by kind of drug, 2024
- Generic2,989 claims82%
- Brand-name652 claims18%
Dr. Chambers' 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. Chambers' Part D claims, 2024
- Antibiotics1%22 of 3,641 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: 4,5302024: 3,37725%
Drugs named by CMS: 41 in 2024, 52 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
Dr. John D. Chambers Jr. ranks in the 99th percentile for pacemaker insertion or repair in Medicare
Dr. Chambers accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 174 procedures of pacemaker insertion or repair by Dr. Chambers, more than 99% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Chambers ranks in Medicare procedure volume
- Pacemaker insertion or repair
- 99th percentile174 procedures
- Coronary angioplasty and stenting
- 98th percentile126 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. John D. Chambers Jr. received $23,320 in industry payments from 2016 to 2025
CMS Open Payments shows 806 general payments to Dr. Chambers from 45 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 54% of the total. AstraZeneca Pharmaceuticals LP paid the most, $9,830.
General payments to Dr. Chambers by program year, 2016 to 2025
General payments to Dr. Chambers by kind, 2016 to 2025
- Food and beverage$12,59654%
- Speaker and faculty fees$6,70029%
- Travel and lodging$3,84716%
- Education$1771%
Companies that paid Dr. Chambers the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. John D. Chambers Jr.'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 Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. John D. Chambers Jr.
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. John D. Chambers Jr.'s NPI number?
Dr. John D. Chambers Jr.'s NPI number is 1578568242. It was assigned on June 17, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John D. Chambers Jr.?
Dr. John D. Chambers Jr. is a cardiologist in Idaho Falls, Idaho. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. John D. Chambers Jr. practice?
Dr. Chambers practices at 3100 Channing Way, Idaho Falls, ID 83403. Dr. Chambers' primary practice is Eastern Idaho Regional Medical Center - Unit in Idaho Falls, Idaho. Dmand AI also links Dr. Chambers to 4 hospitals, 4 group practices and clinics and 3 medical groups.
What is Dr. John D. Chambers Jr.'s office phone number?
The practice phone on file for Dr. Chambers is (208) 529-7679.
What is Dr. John D. Chambers Jr.'s medical license number?
Dr. Chambers holds Idaho license M-7163.
Which hospitals is Dr. John D. Chambers Jr. affiliated with?
Dr. Chambers is affiliated with Mountain View Hospital. Dmand AI links Dr. Chambers to 5 more hospitals.
What medical group is Dr. John D. Chambers Jr. part of?
Dr. Chambers is linked to Mountain View Hospital. Dmand AI links Dr. Chambers to 3 more medical groups.
Does Dr. John D. Chambers Jr. accept Medicare?
Yes. CMS data shows Dr. Chambers billed Medicare for 2,232 services in 2024, and Dr. Chambers accepts Medicare assignment.
How many Medicare patients does Dr. John D. Chambers Jr. see?
CMS counts 1,308 Medicare patients who saw Dr. Chambers in 2024, with an average age of 76.
What services does Dr. John D. Chambers Jr. bill to Medicare?
In 2024, Dr. Chambers' most billed Medicare services were heart test or procedure (93306), heart test or procedure (93356) and office visit, established patient (99214).
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What drugs does Dr. John D. Chambers Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Chambers' most prescribed drugs by claims were Atorvastatin Calcium, Eliquis and Carvedilol.
Has Dr. John D. Chambers Jr. received payments from drug or device companies?
CMS Open Payments shows $23,320 in general payments to Dr. Chambers from 45 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. John D. Chambers Jr. been practicing?
Dr. Chambers graduated from medical school in 1991, 35 years ago.
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