Dr. Jethro Trees Ritter, DO
- Medicare services, 2024
- 1,426
- Medicare patients, 2024
- 302
- Part D claims, 2024
- 667
- Publications
- 4
- Hospital affiliations
- 6
- Practice address
- 1400 E Church St, Santa Maria, CA 93454
- Practice phone
- Call (805) 739-3100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Ritter's 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. Jethro Trees Ritter is an infectious disease specialist in Santa Maria, California
Dr. Ritter practices at Dignity Health - Marian Regional Medical Center in Santa Maria, California, part of CommonSpirit Health.
Dr. Ritter's NPI, 1457330797, was assigned on January 13, 2006. Dr. Ritter graduated from WesternU College of Osteopathic Medicine of the Pacific in 2001. Dr. Ritter holds California license 20A8407.
- NPI
- 1457330797NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3072503127
- NPI enumeration date
- January 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (805) 739-3100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jethro Trees Ritter practices at Dignity Health - Marian Regional Medical Center in Santa Maria, California
Dr. Ritter's primary practice is Dignity Health - Marian Regional Medical Center, at 1400 E Church St, Santa Maria, CA 93454 in Santa Barbara County. The practice phone is (805) 739-3100.
- Dignity Health - Marian Regional Medical Center1400 E Church St, Santa Maria, CA 93454 · Santa Barbara CountyPhone(805) 739-3100
Source: Dmand AI Affiliation Data
Dr. Jethro Trees Ritter is affiliated with 8 sites of care and 1 medical group
Dr. Ritter's primary practice is Dignity Health - Marian Regional Medical Center in Santa Maria, California, part of CommonSpirit Health. Dr. Ritter is also affiliated with Ronald Reagan UCLA Medical Center. The medical group on file is Central Coast Infectious Disease Consultants. Dmand AI also links Dr. Ritter to 4 more hospitals, 1 group practice or clinic and 1 home health agency, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jethro Trees Ritter's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ritter practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - Marian Regional Medical Center | Available with a free account |
| +7 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jethro Trees Ritter is one of 1,054 infectious disease specialists in California
Infectious disease is Dr. Ritter's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Ritter is board certified in infectious disease by the American Board of Internal Medicine. Dr. Ritter is licensed in California.
Specialties and state licenses
- Infectious disease, CaliforniaPrimary
Clinical focus
Dmand AI lists hiv/aids and pneumonia among the conditions Dr. Ritter treats.
Infectious disease specialists near Dr. Ritter
Counts of infectious disease specialists 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. Jethro Trees Ritter billed Medicare for 1,426 services in 2024
CMS data shows 1,426 Medicare services from Dr. Ritter across 5 procedure codes in 2024, for 302 Medicare patients. Medicare paid $131,733 for them.
Dr. Ritter's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,3972024: 1,4262%
Where Dr. Ritter's Medicare services took place, 2024
- In an office977%
- In a facility1,32993%
Dr. Ritter compared with the California median for infectious disease specialists, 2024
- Dr. Ritter
- California median
- Medicare services
- 1,426vs 4293.3 times
- Medicare patients
- 302vs 18068% above
- Part D claims
- 578vs 1194.9 times
Medians across 930 infectious disease specialists in California with Dmand AI profiles that report each measure.
Dr. Ritter'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ritter and other infectious disease specialists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jethro Trees Ritter treated 302 Medicare patients in 2024, average age 73
CMS counts 302 Medicare patients who saw Dr. Ritter in 2024. The largest group is 65 to 74, with 126 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 37% are also on Medicaid. Their average risk score is 2.50, 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. Ritter's median patient age at 65, with 41% women.
Dr. Ritter's Medicare patients by age, 2024
Dr. Ritter's Medicare patients by sex, 2024
- Women11538%
- Men18762%
Chronic conditions among Dr. Ritter's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Chronic kidney disease47%
- Diabetes46%
- Mood disorders39%
- Heart failure38%
- Ischemic heart disease37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ritter's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women41%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jethro Trees Ritter wrote 667 Medicare Part D claims in 2024
In 2024, Dr. Ritter wrote 667 Medicare Part D claims for 98 patients. 79% of them were for generic drugs. CMS names the drug for 578 of them, across 22 drugs with 11 or more claims each, at $505,448 in total drug cost. In 2023, CMS named 390 claims across 17 drugs.
Dr. Ritter's Part D claims by kind of drug, 2024
- Generic524 claims79%
- Brand-name143 claims21%
Dr. Ritter'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. Ritter's Part D claims, 2024
- Antibiotics37%246 of 667 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: 3902024: 57848%
Drugs named by CMS: 22 in 2024, 17 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
How Dr. Jethro Trees Ritter takes part in Medicare
Dr. Ritter 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. Jethro Trees Ritter has 4 publications on record
Dmand AI links 4 papers to Dr. Ritter, published from 2016 to 2018. Dr. Ritter has published most often in Open Forum Infect Dis. Dr. Ritter's most frequent co-authors are Ann T. Macintyre, DO and Robin L. Trotman, DO.
Dr. Ritter's most frequent co-authors
Recent publications by Dr. Ritter
See who Dr. Ritter researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ritter works with, so you can find a warm path to the right infectious disease specialists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Jethro Trees Ritter received $473 in industry payments from 2016 to 2017
CMS Open Payments shows 6 general payments to Dr. Ritter from 2 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. BioFire Diagnostics, LLC paid the most, $459.
General payments to Dr. Ritter by program year, 2016 to 2017
Companies that paid Dr. Ritter the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jethro Trees Ritter graduated from WesternU College of Osteopathic Medicine of the Pacific
Dr. Ritter graduated from WesternU College of Osteopathic Medicine of the Pacific in 2001.
- Medical school
- Board certified in infectious disease
Source: Dmand AI Professional Profile Data
Dr. Jethro Trees Ritter accepts plans from 13 insurance carriers
Dr. Ritter is in network with 13 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +5 more carriersWith a free account
Plan types Dr. Ritter accepts, by number of carriers
- PPO9
- Medicare8
- HMO6
- POS4
- EPO3
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Jethro Trees Ritter'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 DataDmand AI Org Hierarchy 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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. Jethro Trees Ritter
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. Jethro Trees Ritter's NPI number?
Dr. Jethro Trees Ritter's NPI number is 1457330797. It was assigned on January 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Jethro Trees Ritter?
Dr. Jethro Trees Ritter is an infectious disease specialist in Santa Maria, California. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. Jethro Trees Ritter practice?
Dr. Ritter practices at 1400 E Church St, Santa Maria, CA 93454. Dr. Ritter's primary practice is Dignity Health - Marian Regional Medical Center in Santa Maria, California, part of CommonSpirit Health. Dmand AI also links Dr. Ritter to 4 hospitals, 1 group practice or clinic and 1 home health agency.
What is Dr. Jethro Trees Ritter's office phone number?
The practice phone on file for Dr. Ritter is (805) 739-3100.
What is Dr. Jethro Trees Ritter's medical license number?
Dr. Ritter holds California license 20A8407.
Which hospitals is Dr. Jethro Trees Ritter affiliated with?
Dr. Ritter practices at Dignity Health - Marian Regional Medical Center in Santa Maria, California. Dr. Ritter is also affiliated with Ronald Reagan UCLA Medical Center. Dmand AI links Dr. Ritter to 4 more hospitals.
What medical group is Dr. Jethro Trees Ritter part of?
Dr. Ritter is linked to Central Coast Infectious Disease Consultants.
Does Dr. Jethro Trees Ritter accept Medicare?
Yes. CMS data shows Dr. Ritter billed Medicare for 1,426 services in 2024, and Dr. Ritter accepts Medicare assignment.
How many Medicare patients does Dr. Jethro Trees Ritter see?
CMS counts 302 Medicare patients who saw Dr. Ritter in 2024, with an average age of 73.
Is Dr. Jethro Trees Ritter board certified?
Yes. Dr. Ritter is board certified in infectious disease by the American Board of Internal Medicine.
Show 8 more questionsShow fewer questions
What services does Dr. Jethro Trees Ritter bill to Medicare?
In 2024, Dr. Ritter's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99223).
Where did Dr. Jethro Trees Ritter go to medical school?
Dr. Ritter graduated from WesternU College of Osteopathic Medicine of the Pacific in 2001.
What drugs does Dr. Jethro Trees Ritter prescribe most?
In 2024 Medicare Part D data, Dr. Ritter's most prescribed drugs by claims were Fluconazole, Ampicillin-Sulbactam and Cefazolin Sodium.
Has Dr. Jethro Trees Ritter received payments from drug or device companies?
CMS Open Payments shows $473 in general payments to Dr. Ritter from 2 companies from 2016 to 2017. The largest total came from BioFire Diagnostics, LLC.
How long has Dr. Jethro Trees Ritter been practicing?
Dr. Ritter graduated from medical school in 2001, 25 years ago.
Does Dr. Jethro Trees Ritter do research?
Dmand AI links 4 publications to Dr. Ritter, published from 2016 to 2018.
Who does Dr. Jethro Trees Ritter publish with?
Dr. Ritter's most frequent co-authors are Ann T. Macintyre, DO (2 shared papers) and Robin L. Trotman, DO (1 shared paper).
What insurance does Dr. Jethro Trees Ritter accept?
Dr. Ritter is in network with 13 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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