Dr. Dorothea E. Clayton, MD

  • Camarillo, CA
  • Internist
NPI1053596395PAC ID5496813842
Medicare services, 2024
850
Medicare patients, 2024
146
Part D claims, 2024
3,908
Hospital affiliations
1
Industry payments
$4,071
Practice address
5800 Santa Rosa Rd, Camarillo, CA 93012
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Santa Rosa Health Clinic - Primary Care - HOPD

Acute Care Hospital outpatient department · Camarillo, California

See all 7 affiliations

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Dr. Dorothea E. Clayton is an internist in Camarillo, California

Dr. Clayton practices at Santa Rosa Health Clinic - Primary Care - HOPD in Camarillo, California.

Dr. Clayton's NPI, 1053596395, was assigned on January 6, 2008. Dr. Clayton graduated from Sidney Kimmel Medical College in 2005. Dr. Clayton's California license number on file is A103688.

NPI and contact details
Medicare PAC ID
5496813842
NPI enumeration date
January 6, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Professional email
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Personal email
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Mobile number
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Sex
Female
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. Dorothea E. Clayton practices at Santa Rosa Health Clinic - Primary Care - HOPD in Camarillo, California

Dr. Clayton's primary practice is Santa Rosa Health Clinic - Primary Care - HOPD, at 5800 Santa Rosa Rd, Camarillo, CA 93012.

  • Santa Rosa Health Clinic - Primary Care - HOPD
    5800 Santa Rosa Rd, Camarillo, CA 93012

Source: Dmand AI Affiliation Data

Dr. Dorothea E. Clayton is affiliated with 5 sites of care and 2 medical groups

Dr. Clayton's primary practice is Santa Rosa Health Clinic - Primary Care - HOPD in Camarillo, California. Dr. Clayton is also affiliated with Community Memorial Hospital - Ventura. The medical group on file is Community Memorial Healthcare. Dmand AI also links Dr. Clayton to 2 more group practices and clinics, 1 home health agency and 1 medical group, each named with a free account.

See all 7 affiliations for Dr. Clayton

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Dorothea E. Clayton's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Clayton practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Santa Rosa Health Clinic - Primary Care - HOPDAvailable with a free account
+4 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Dorothea E. Clayton is one of 16,751 internists in California

Internal medicine is Dr. Clayton's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Clayton is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Clayton's licenses on file in 2 states: California and Illinois.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense A103688 · 2008 to 2025 · taxonomy 207R00000X
  • Illinois licenseLicense 125-048954 · 2005 to 2008

Clinical focus

Dmand AI lists acid reflux, ADHD, adjustment disease, aneurysm, anxiety, aortic atherosclerois, arthritis and asthma among the conditions Dr. Clayton treats.

Internists near Dr. Clayton

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. Dorothea E. Clayton billed Medicare for 850 services in 2024

CMS data shows 850 Medicare services from Dr. Clayton across 8 procedure codes in 2024, for 146 Medicare patients. Medicare paid $53,504 for them. Every service was in an office.

Medicare services, 2024850
Medicare patients146
Paid by Medicare$53,504
Procedure codes8

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

  • 2023
  • 2024
Office and hospital visits
2023: 8082024: 72011%
Other services
2023: 752024: 10743%
Tests and treatments
2023: 112024: 129%
Surgery
2023: 02024: 11

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

  • Dr. Clayton
  • California median
Medicare services
850vs 3612.4 times
Medicare patients
146vs 151Close to median
Part D claims
3,256vs 4217.7 times

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

Dr. Clayton'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.

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

Dr. Dorothea E. Clayton treated 146 Medicare patients in 2024, average age 71

CMS counts 146 Medicare patients who saw Dr. Clayton in 2024. The largest group is 65 to 74, with 67 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 46% are also on Medicaid. Their average risk score is 1.67, 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. Clayton's median patient age at 63, with 66% women.

Medicare patients, 2024146
Average age71
Average risk score1.67
Also on Medicaid46%

Dr. Clayton's Medicare patients by age, 2024

Dr. Clayton's Medicare patients by sex, 2024

  • Women9162%
  • Men5538%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis42%
  4. Anxiety39%
  5. Diabetes38%
  6. Mood disorders29%
  7. Osteoporosis29%
  8. Depression27%

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

Dr. Clayton's patients across all payers

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

Patient panel by age, all payers

Median age 63

Patient panel by sex, all payers

  • Women66%
  • Men34%

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

Dr. Dorothea E. Clayton wrote 3,908 Medicare Part D claims in 2024

In 2024, Dr. Clayton wrote 3,908 Medicare Part D claims for 290 patients. 91% of them were for generic drugs. CMS names the drug for 3,256 of them, across 86 drugs with 11 or more claims each, at $133,911 in total drug cost. In 2023, CMS named 2,869 claims across 73 drugs.

Part D claims, 20243,908
Drugs named by CMS86
Total drug cost$133,911
Part D patients290

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

  • Generic3,558 claims91%
  • Brand-name333 claims9%
  • Other17 claims0%

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

  • Opioids3%127 of 3,908 claims
  • Antibiotics2%89 of 3,908 claims
  • Antipsychotics, patients 65 and over0%14 of 3,908 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: 2,8692024: 3,25613%

Drugs named by CMS: 86 in 2024, 73 in 2023.

See all prescribing by Dr. Clayton

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. Dorothea E. Clayton offers telehealth to Medicare patients

Dr. Clayton accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Clayton as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Removal of skin lesions: 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. Dorothea E. Clayton received $4,071 in industry payments from 2016 to 2025

CMS Open Payments shows 214 general payments to Dr. Clayton from 31 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $1,016.

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

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

$4.1Kin total
  • Food and beverage$4,058100%
  • Education$120%

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

Share is of all general payments to this clinician.

See all payments to Dr. Clayton

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

Dr. Dorothea E. Clayton has 1 award and honors on record

Dmand AI lists 1 award for Dr. Clayton, most recently NCQA PCMH in 2016.

Awards and honors for Dr. Clayton

  1. 2016
    • NCQA PCMH

Source: Dmand AI Professional Profile Data

Dr. Dorothea E. Clayton graduated from Sidney Kimmel Medical College

Dr. Clayton graduated from Sidney Kimmel Medical College in 2005.

  1. Medical schoolSidney Kimmel Medical College
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Dorothea E. Clayton accepts plans from 11 insurance carriers

Dr. Clayton is in network with 11 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
  • +3 more carriersWith a free account

Plan types Dr. Clayton accepts, by number of carriers

  1. Medicare7
  2. PPO7
  3. HMO4
  4. POS4
  5. EPO2

Source: Dmand AI Insurance Network Data

Sources for Dr. Dorothea E. Clayton'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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
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. Dorothea E. Clayton

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. Dorothea E. Clayton's NPI number?

Dr. Dorothea E. Clayton's NPI number is 1053596395. It was assigned on January 6, 2008, and it is active in the NPI Registry.

What kind of doctor is Dr. Dorothea E. Clayton?

Dr. Dorothea E. Clayton is an internist in Camarillo, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Dorothea E. Clayton practice?

Dr. Clayton practices at 5800 Santa Rosa Rd, Camarillo, CA 93012. Dr. Clayton's primary practice is Santa Rosa Health Clinic - Primary Care - HOPD in Camarillo, California. Dmand AI also links Dr. Clayton to 2 group practices and clinics, 1 home health agency and 1 medical group.

What is Dr. Dorothea E. Clayton's medical license number?

Dr. Clayton's California license number on file is A103688, one of the licenses on file in 2 states.

Which states has Dr. Dorothea E. Clayton been licensed in?

Dmand AI has state licenses on file for Dr. Clayton in California (2008 to 2025) and Illinois (2005 to 2008).

Which hospitals is Dr. Dorothea E. Clayton affiliated with?

Dr. Clayton is affiliated with Community Memorial Hospital - Ventura.

What medical group is Dr. Dorothea E. Clayton part of?

Dr. Clayton is linked to Community Memorial Healthcare. Dmand AI links Dr. Clayton to 1 more medical group.

Does Dr. Dorothea E. Clayton accept Medicare?

Yes. CMS data shows Dr. Clayton billed Medicare for 850 services in 2024, and Dr. Clayton accepts Medicare assignment.

Does Dr. Dorothea E. Clayton offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Clayton as offering telehealth services.

How many Medicare patients does Dr. Dorothea E. Clayton see?

CMS counts 146 Medicare patients who saw Dr. Clayton in 2024, with an average age of 71.

Show 7 more questionsShow fewer questions

Is Dr. Dorothea E. Clayton board certified?

Yes. Dr. Clayton is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. Dorothea E. Clayton bill to Medicare?

In 2024, Dr. Clayton's most billed Medicare services were care management and other visits (99490), office visit, established patient (99214) and medicare service (G0439).

Where did Dr. Dorothea E. Clayton go to medical school?

Dr. Clayton graduated from Sidney Kimmel Medical College in 2005.

What drugs does Dr. Dorothea E. Clayton prescribe most?

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

Has Dr. Dorothea E. Clayton received payments from drug or device companies?

CMS Open Payments shows $4,071 in general payments to Dr. Clayton from 31 companies from 2016 to 2025. The largest total came from Amgen Inc.

How long has Dr. Dorothea E. Clayton been practicing?

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

What insurance does Dr. Dorothea E. Clayton accept?

Dr. Clayton is in network with 11 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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