Dr. Charles Arbie Garretson, MD

  • Chico, CA
  • Internist
NPI1144284373PAC ID5991603516
Medicare services, 2024
9,995
Medicare patients, 2024
2,034
Part D claims, 2024
38,897
Hospital affiliations
3
Industry payments
$1,688
Practice address
587 Rio Lindo Avenue, Chico, CA 95926
Practice phone
Call (530) 345-1306
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Autumn Creek Post Acute

Skilled Nursing Facility · Chico, California

See all 18 affiliations

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Dr. Charles Arbie Garretson is an internist in Chico, California

Dr. Garretson practices at Autumn Creek Post Acute in Chico, California.

Dr. Garretson's NPI, 1144284373, was assigned on April 14, 2006. Dr. Garretson graduated from Marshall University Joan C. Edwards School of Medicine in 1987. Dr. Garretson holds California license G86610.

NPI and contact details
Medicare PAC ID
5991603516
NPI enumeration date
April 14, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(530) 345-1306
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
65
Medical school graduation
1987

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

Dr. Charles Arbie Garretson practices at Autumn Creek Post Acute in Chico, California

Dr. Garretson's primary practice is Autumn Creek Post Acute, at 587 Rio Lindo Avenue, Chico, CA 95926 in Butte County. The practice phone is (530) 345-1306.

  • Autumn Creek Post Acute
    587 Rio Lindo Avenue, Chico, CA 95926 · Butte CountyPhone(530) 345-1306

Source: Dmand AI Affiliation Data

Dr. Charles Arbie Garretson is affiliated with 15 sites of care and 3 medical groups

Dr. Garretson's primary practice is Autumn Creek Post Acute in Chico, California. Dr. Garretson is also affiliated with Enloe Health. The medical group on file is Feather River Health Solutions. Dmand AI also links Dr. Garretson to 2 more hospitals, 4 skilled nursing facilities, 3 home health agencies, 2 hospices, 2 medical groups, 1 community health center and 1 group practice or clinic, each named with a free account.

See all 18 affiliations for Dr. Garretson

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

Dmand AI tracks the EHR system at Dr. Charles Arbie Garretson's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Garretson practices, 15 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Autumn Creek Post AcuteAvailable with a free account
+14 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Charles Arbie Garretson is one of 16,751 internists in California

Internal medicine is Dr. Garretson's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Garretson's licenses on file in 3 states: California, West Virginia and Virginia.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense G86610 · 2002 to 2026 · taxonomy 207R00000X
  • West Virginia license1988 to 2026
  • Virginia license1996 to 2006

Clinical focus

Dmand AI lists acid reflux, ADHD, alcohol use disorders, alzheimer's disease, aneurysm, anxiety, arthritis and asthma among the conditions Dr. Garretson treats.

Internists near Dr. Garretson

Counts of internists 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. Charles Arbie Garretson billed Medicare for 9,995 services in 2024

CMS data shows 9,995 Medicare services from Dr. Garretson across 4 procedure codes in 2024, for 2,034 Medicare patients. Medicare paid $656,072 for them.

Medicare services, 20249,995
Medicare patients2,034
Paid by Medicare$656,072
Procedure codes4

Dr. Garretson's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 12,4542024: 9,99520%

Where Dr. Garretson's Medicare services took place, 2024

  • In an office420%
  • In a facility9,953100%

Dr. Garretson compared with the California median for internists, 2024

  • Dr. Garretson
  • California median
Medicare services
9,995vs 36127.7 times
Medicare patients
2,034vs 15113.5 times
Part D claims
37,961vs 42190.2 times

Medians across 15,815 internists in California with Dmand AI profiles that report each measure.

Dr. Garretson's 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. Garretson

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

Dr. Charles Arbie Garretson treated 2,034 Medicare patients in 2024, average age 79

CMS counts 2,034 Medicare patients who saw Dr. Garretson in 2024. The largest group is 75 to 84, with 730 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 60% are also on Medicaid. Their average risk score is 2.48, 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. Garretson's median patient age at 79, with 61% women.

Medicare patients, 20242,034
Average age79
Average risk score2.48
Also on Medicaid60%

Dr. Garretson's Medicare patients by age, 2024

Dr. Garretson's Medicare patients by sex, 2024

  • Women1,19059%
  • Men84441%

Chronic conditions among Dr. Garretson's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Mood disorders58%
  4. Depression53%
  5. Arthritis47%
  6. Diabetes43%
  7. Alzheimer's and dementia42%
  8. Anxiety42%

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

Dr. Garretson's patients across all payers

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

Patient panel by age, all payers

Median age 79

Patient panel by sex, all payers

  • Women61%
  • Men39%

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

Dr. Charles Arbie Garretson wrote 38,897 Medicare Part D claims in 2024

In 2024, Dr. Garretson wrote 38,897 Medicare Part D claims for 1,203 patients. 82% of them were for generic drugs. CMS names the drug for 37,961 of them, across 297 drugs with 11 or more claims each, at $2,191,794 in total drug cost. In 2023, CMS named 28,167 claims across 248 drugs.

Part D claims, 202438,897
Drugs named by CMS297
Total drug cost$2.2M
Part D patients1,203

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

  • Generic31,922 claims82%
  • Brand-name6,875 claims18%
  • Other100 claims0%

Dr. Garretson's 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. Garretson's Part D claims, 2024

  • Opioids7%2,637 of 38,897 claims
  • Antibiotics3%1,178 of 38,897 claims
  • Antipsychotics, patients 65 and over2%886 of 38,897 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: 28,1672024: 37,96135%

Drugs named by CMS: 297 in 2024, 248 in 2023.

See all prescribing by Dr. Garretson

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. Charles Arbie Garretson takes part in Medicare

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

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Charles Arbie Garretson received $1,688 in industry payments from 2016 to 2025

CMS Open Payments shows 104 general payments to Dr. Garretson from 26 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Purdue Pharma L.P. paid the most, $229.

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

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

$1.7Kin total
  • Food and beverage$1,67499%
  • Education$141%

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

Share is of all general payments to this clinician.

See all payments to Dr. Garretson

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

Dr. Charles Arbie Garretson graduated from Marshall University Joan C. Edwards School of Medicine

Dr. Garretson graduated from Marshall University Joan C. Edwards School of Medicine in 1987.

  1. Medical schoolMarshall University Joan C. Edwards School of Medicine

Source: Dmand AI Professional Profile Data

Dr. Charles Arbie Garretson accepts plans from 13 insurance carriers

Dr. Garretson is in network with 13 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Elevance
  • HCSC
  • Aetna
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • Alliant Health Plans
  • +5 more carriersWith a free account

Plan types Dr. Garretson accepts, by number of carriers

  1. PPO9
  2. HMO6
  3. Medicare6
  4. EPO3
  5. POS2

Source: Dmand AI Insurance Network Data

Sources for Dr. Charles Arbie Garretson'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)
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. Charles Arbie Garretson

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. Charles Arbie Garretson's NPI number?

Dr. Charles Arbie Garretson's NPI number is 1144284373. It was assigned on April 14, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Charles Arbie Garretson?

Dr. Charles Arbie Garretson is an internist in Chico, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Charles Arbie Garretson practice?

Dr. Garretson practices at 587 Rio Lindo Avenue, Chico, CA 95926. Dr. Garretson's primary practice is Autumn Creek Post Acute in Chico, California. Dmand AI also links Dr. Garretson to 2 hospitals, 4 skilled nursing facilities, 3 home health agencies, 2 hospices, 2 medical groups, 1 community health center and 1 group practice or clinic.

What is Dr. Charles Arbie Garretson's office phone number?

The practice phone on file for Dr. Garretson is (530) 345-1306.

What is Dr. Charles Arbie Garretson's medical license number?

Dr. Garretson holds California license G86610, one of the licenses on file in 3 states.

Which states has Dr. Charles Arbie Garretson been licensed in?

Dmand AI has state licenses on file for Dr. Garretson in California (2002 to 2026), West Virginia (1988 to 2026) and Virginia (1996 to 2006).

Which hospitals is Dr. Charles Arbie Garretson affiliated with?

Dr. Garretson is affiliated with Enloe Health. Dmand AI links Dr. Garretson to 2 more hospitals.

What medical group is Dr. Charles Arbie Garretson part of?

Dr. Garretson is linked to Feather River Health Solutions. Dmand AI links Dr. Garretson to 2 more medical groups.

Does Dr. Charles Arbie Garretson accept Medicare?

Yes. CMS data shows Dr. Garretson billed Medicare for 9,995 services in 2024, and Dr. Garretson accepts Medicare assignment.

How many Medicare patients does Dr. Charles Arbie Garretson see?

CMS counts 2,034 Medicare patients who saw Dr. Garretson in 2024, with an average age of 79.

Show 6 more questionsShow fewer questions

What services does Dr. Charles Arbie Garretson bill to Medicare?

In 2024, Dr. Garretson's most billed Medicare services were nursing facility care (99308), nursing facility care (99305) and nursing facility care (99309).

Where did Dr. Charles Arbie Garretson go to medical school?

Dr. Garretson graduated from Marshall University Joan C. Edwards School of Medicine in 1987.

What drugs does Dr. Charles Arbie Garretson prescribe most?

In 2024 Medicare Part D data, Dr. Garretson's most prescribed drugs by claims were Atorvastatin Calcium, Eliquis and Levothyroxine Sodium.

Has Dr. Charles Arbie Garretson received payments from drug or device companies?

CMS Open Payments shows $1,688 in general payments to Dr. Garretson from 26 companies from 2016 to 2025. The largest total came from Purdue Pharma L.P.

How long has Dr. Charles Arbie Garretson been practicing?

Dr. Garretson graduated from medical school in 1987, 39 years ago.

What insurance does Dr. Charles Arbie Garretson accept?

Dr. Garretson is in network with 13 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

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