Dr. Ronald Gordon Chambers Jr., MD

  • Sacramento, CA
  • Family medicine physician
NPI1053450783PAC ID9436218344
Medicare services, 2024
37
Medicare patients, 2024
50
Part D claims, 2024
224
Publications
4
Hospital affiliations
1
Practice address
7601 Hospital Dr Suite 103 Suite 103, Sacramento, CA 95823-5408
Practice phone
Call (916) 681-1600
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Mercy Family Health Center

Primary care practice · Sacramento, California

See all 5 affiliations

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Dr. Ronald Gordon Chambers Jr. is a family medicine physician in Sacramento, California

Dr. Chambers practices at Mercy Family Health Center in Sacramento, California.

Dr. Chambers' NPI, 1053450783, was assigned on February 6, 2007. Dr. Chambers graduated from George Washington University School of Medicine and Health Sciences in 2005. Dr. Chambers holds California license A97532.

NPI and contact details
Medicare PAC ID
9436218344
NPI enumeration date
February 6, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(916) 681-1600
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
47
Medical school graduation
2005

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

Dr. Ronald Gordon Chambers Jr. practices at Mercy Family Health Center in Sacramento, California

Dr. Chambers' primary practice is Mercy Family Health Center, at 7601 Hospital Dr Suite 103 Suite 103, Sacramento, CA 95823-5408. The practice phone is (916) 681-1600.

  • Mercy Family Health Center
    7601 Hospital Dr Suite 103 Suite 103, Sacramento, CA 95823-5408Phone(916) 681-1600

Source: Dmand AI Affiliation Data

Dr. Ronald Gordon Chambers Jr. is affiliated with 3 sites of care and 2 medical groups

Dr. Chambers' primary practice is Mercy Family Health Center in Sacramento, California. Dr. Chambers is also affiliated with Dignity Health - Methodist Hospital of Sacramento. The medical group on file is Mercy Family Health Center. Dmand AI also links Dr. Chambers to 1 more group practice or clinic and 1 medical group, each named with a free account.

See all 5 affiliations for Dr. Chambers

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Ronald Gordon Chambers Jr.'s practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chambers practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Mercy Family Health CenterAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Ronald Gordon Chambers Jr. is one of 15,680 family medicine physicians in California

Family medicine is Dr. Chambers' primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Chambers is board certified in family medicine by the American Board of Family Medicine. Dr. Chambers is licensed in California.

Specialties and state licenses

  • Family medicine, CaliforniaPrimaryLicense A97532 · 2006 to 2026 · taxonomy 207Q00000X

Clinical focus

Dmand AI lists adjustment disease, chronic diabetes, chronic hypertension, congestive heart failure, insomnia, lower back pain, menopause and muscle pain, fibromyalgia, and limb pain among the conditions Dr. Chambers treats.

Family medicine physicians near Dr. Chambers

Counts of family medicine physicians 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. Ronald Gordon Chambers Jr. billed Medicare for 37 services in 2024

CMS data shows 37 Medicare services from Dr. Chambers across 2 procedure codes in 2024, all of them office visits, for 50 Medicare patients. Medicare paid $1,982 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202437
Medicare patients50
Paid by Medicare$1,982
Procedure codes2

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

  • 2023
  • 2024
Office and hospital visits
2023: 442024: 3716%

Dr. Chambers compared with the California median for family medicine physicians, 2024

  • Dr. Chambers
  • California median
Medicare services
37vs 24685% below
Medicare patients
50vs 11858% below
Part D claims
42vs 83395% below

Medians across 15,349 family medicine physicians in California 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.

See all procedures by Dr. Chambers

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

Dr. Ronald Gordon Chambers Jr. treated 50 Medicare patients in 2024, average age 73

CMS counts 50 Medicare patients who saw Dr. Chambers in 2024. The largest group is 65 to 74, with 20 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 56% are also on Medicaid. Their average risk score is 1.83, 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. Chambers' median patient age at 53, with 62% women.

Medicare patients, 202450
Average age73
Average risk score1.83
Also on Medicaid56%

Dr. Chambers' Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Chambers' Medicare patients by sex, 2024

  • Women3366%
  • Men1734%

Chronic conditions among Dr. Chambers' Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis52%
  4. Diabetes42%
  5. Mood disorders34%
  6. Depression30%
  7. Chronic kidney disease28%
  8. Anxiety26%

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 53

Patient panel by sex, all payers

  • Women62%
  • Men37%

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

Dr. Ronald Gordon Chambers Jr. wrote 224 Medicare Part D claims in 2024

In 2024, Dr. Chambers wrote 224 Medicare Part D claims for 47 patients. 89% of them were for generic drugs. CMS names the drug for 42 of them, across 3 drugs with 11 or more claims each, at $444 in total drug cost. In 2023, CMS named 81 claims across 4 drugs.

Part D claims, 2024224
Drugs named by CMS3
Total drug cost$444
Part D patients47

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

  • Generic200 claims89%
  • Brand-name24 claims11%

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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 812024: 4248%

Drugs named by CMS: 3 in 2024, 4 in 2023.

See all prescribing by Dr. Chambers

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. Ronald Gordon Chambers Jr. takes part in Medicare

Dr. Chambers 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. Ronald Gordon Chambers Jr. has 4 publications on record

Dmand AI links 4 papers to Dr. Chambers, published from 2019 to 2023. Dr. Chambers' most frequent co-authors are Kiersten Kelly, MD, Santhosh K. Paulus, MD and Anita Ravi, MD, MPH.

Papers4
Years published2019 to 2023

Dr. Chambers' most frequent co-authors

Recent publications by Dr. Chambers

See all 4 publications and co-authors

See who Dr. Chambers researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chambers works with, so you can find a warm path to the right family medicine physicians.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Ronald Gordon Chambers Jr. received $52 in industry payments from 2020 to 2023

CMS Open Payments shows 2 general payments to Dr. Chambers from 2 drug and device companies from 2020 to 2023. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $31.

General payments to Dr. Chambers by program year, 2020 to 2023

Companies that paid Dr. Chambers the most, 2020 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Chambers

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

Dr. Ronald Gordon Chambers Jr. graduated from George Washington University School of Medicine and Health Sciences

Dr. Chambers graduated from George Washington University School of Medicine and Health Sciences in 2005.

  1. Medical schoolGeorge Washington University School of Medicine and Health Sciences
  2. Board certified in family medicineAmerican Board of Family Medicine

Source: Dmand AI Professional Profile Data

Dr. Ronald Gordon Chambers Jr. accepts plans from 15 insurance carriers

Dr. Chambers is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Elevance
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Humana
  • Regence Health Plans
  • +7 more carriersWith a free account

Plan types Dr. Chambers accepts, by number of carriers

  1. PPO10
  2. Medicare9
  3. HMO6
  4. EPO4
  5. POS3

Source: Dmand AI Insurance Network Data

Sources for Dr. Ronald Gordon Chambers Jr.'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 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)
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. Ronald Gordon 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. Ronald Gordon Chambers Jr.'s NPI number?

Dr. Ronald Gordon Chambers Jr.'s NPI number is 1053450783. It was assigned on February 6, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Ronald Gordon Chambers Jr.?

Dr. Ronald Gordon Chambers Jr. is a family medicine physician in Sacramento, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).

Where does Dr. Ronald Gordon Chambers Jr. practice?

Dr. Chambers practices at 7601 Hospital Dr Suite 103 Suite 103, Sacramento, CA 95823-5408. Dr. Chambers' primary practice is Mercy Family Health Center in Sacramento, California. Dmand AI also links Dr. Chambers to 1 group practice or clinic and 1 medical group.

What is Dr. Ronald Gordon Chambers Jr.'s office phone number?

The practice phone on file for Dr. Chambers is (916) 681-1600.

What is Dr. Ronald Gordon Chambers Jr.'s medical license number?

Dr. Chambers holds California license A97532.

Which hospitals is Dr. Ronald Gordon Chambers Jr. affiliated with?

Dr. Chambers is affiliated with Dignity Health - Methodist Hospital of Sacramento.

What medical group is Dr. Ronald Gordon Chambers Jr. part of?

Dr. Chambers is linked to Mercy Family Health Center. Dmand AI links Dr. Chambers to 1 more medical group.

Does Dr. Ronald Gordon Chambers Jr. accept Medicare?

Yes. CMS data shows Dr. Chambers billed Medicare for 37 services in 2024, and Dr. Chambers accepts Medicare assignment.

How many Medicare patients does Dr. Ronald Gordon Chambers Jr. see?

CMS counts 50 Medicare patients who saw Dr. Chambers in 2024, with an average age of 73.

Is Dr. Ronald Gordon Chambers Jr. board certified?

Yes. Dr. Chambers is board certified in family medicine by the American Board of Family Medicine.

Show 8 more questionsShow fewer questions

What services does Dr. Ronald Gordon Chambers Jr. bill to Medicare?

In 2024, Dr. Chambers' most billed Medicare services were office visit, established patient (99214) and office visit, established patient (99213).

Where did Dr. Ronald Gordon Chambers Jr. go to medical school?

Dr. Chambers graduated from George Washington University School of Medicine and Health Sciences in 2005.

What drugs does Dr. Ronald Gordon Chambers Jr. prescribe most?

In 2024 Medicare Part D data, Dr. Chambers' most prescribed drugs by claims were Atorvastatin Calcium, Lisinopril and Amlodipine Besylate.

Has Dr. Ronald Gordon Chambers Jr. received payments from drug or device companies?

CMS Open Payments shows $52 in general payments to Dr. Chambers from 2 companies from 2020 to 2023. The largest total came from Abbvie Inc.

How long has Dr. Ronald Gordon Chambers Jr. been practicing?

Dr. Chambers graduated from medical school in 2005, 21 years ago.

Does Dr. Ronald Gordon Chambers Jr. do research?

Dmand AI links 4 publications to Dr. Chambers, published from 2019 to 2023.

Who does Dr. Ronald Gordon Chambers Jr. publish with?

Dr. Chambers' most frequent co-authors are Kiersten Kelly, MD (1 shared paper), Santhosh K. Paulus, MD (1 shared paper) and Anita Ravi, MD, MPH (1 shared paper).

What insurance does Dr. Ronald Gordon Chambers Jr. accept?

Dr. Chambers is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

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