Dr. Carmen Ruiz, MD
- Medicare services, 2024
- 82
- Medicare patients, 2024
- 63
- Part D claims, 2024
- 231
- Publications
- 2
- Hospital affiliations
- 2
- Practice address
- 1050 Linden Ave, Long Beach, CA 90813
- Practice phone
- Call (562) 491-9000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ruiz'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. Carmen Ruiz is a colorectal surgeon in Long Beach, California
Dr. Ruiz practices at Dignity Health - St. Mary Medical Center in Long Beach, California, part of CommonSpirit Health.
Dr. Ruiz's NPI, 1003886490, was assigned on January 26, 2006. Dr. Ruiz graduated from Harvard Medical School in 1996. Dr. Ruiz holds California license C146537.
- NPI
- 1003886490NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0547161630
- NPI enumeration date
- January 26, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (562) 491-9000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Carmen Ruiz practices at Dignity Health - St. Mary Medical Center in Long Beach, California
Dr. Ruiz's primary practice is Dignity Health - St. Mary Medical Center, at 1050 Linden Ave, Long Beach, CA 90813 in Los Angeles County. The practice phone is (562) 491-9000.
- Dignity Health - St. Mary Medical Center1050 Linden Ave, Long Beach, CA 90813 · Los Angeles CountyPhone(562) 491-9000
Source: Dmand AI Affiliation Data
Dr. Carmen Ruiz is affiliated with 4 sites of care and 1 medical group
Dr. Ruiz's primary practice is Dignity Health - St. Mary Medical Center in Long Beach, California, part of CommonSpirit Health. Dr. Ruiz is also affiliated with Dignity Health - Glendale Memorial Hospital and Health Center. Dmand AI also links Dr. Ruiz to 1 more physician office, 1 group practice or clinic and 1 medical group, 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. Carmen Ruiz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ruiz practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - St. Mary Medical Center | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Carmen Ruiz is one of 187 colorectal surgeons in California
Colon and rectal surgery is Dr. Ruiz's primary specialty in the NPI Registry, under taxonomy code 208C00000X. Dr. Ruiz is board certified in colon & rectal surgery by the American Board of Colon and Rectal Surgery. Dmand AI has Dr. Ruiz's licenses on file in 3 states: California, Oklahoma and Minnesota.
Specialties and state licenses
- Colon and rectal surgery, CaliforniaPrimary
- Oklahoma license
- Minnesota license
Clinical focus
Dmand AI lists colonoscopy, colon removal and hemorrhoids among the conditions Dr. Ruiz treats.
Colorectal surgeons near Dr. Ruiz
Counts of colorectal surgeons 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. Carmen Ruiz billed Medicare for 82 services in 2024
CMS data shows 82 Medicare services from Dr. Ruiz across 3 procedure codes in 2024, for 63 Medicare patients. Medicare paid $6,200 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Ruiz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1302024: 5955%
- Surgery
- 2023: 302024: 2323%
Dr. Ruiz compared with the California median for colorectal surgeons, 2024
- Dr. Ruiz
- California median
- Medicare services
- 82vs 27070% below
- Medicare patients
- 63vs 15559% below
- Part D claims
- 183vs 712.6 times
Medians across 175 colorectal surgeons in California with Dmand AI profiles that report each measure.
Dr. Ruiz'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.
Need commercial claims for Dr. Ruiz?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ruiz and other colorectal surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Carmen Ruiz treated 63 Medicare patients in 2024, average age 72
CMS counts 63 Medicare patients who saw Dr. Ruiz in 2024. The largest group is 65 to 74, with 24 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 81% are also on Medicaid. Their average risk score is 1.84, 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. Ruiz's median patient age at 54, with 53% women.
Dr. Ruiz's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Ruiz's Medicare patients by sex, 2024
- Women3962%
- Men2438%
Chronic conditions among Dr. Ruiz's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis57%
- Diabetes54%
- Ischemic heart disease41%
- Chronic kidney disease33%
- Mood disorders33%
- Anxiety30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ruiz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Carmen Ruiz wrote 231 Medicare Part D claims in 2024
In 2024, Dr. Ruiz wrote 231 Medicare Part D claims for 94 patients. 94% of them were for generic drugs. CMS names the drug for 183 of them, across 7 drugs with 11 or more claims each, at $1,728 in total drug cost. In 2023, CMS named 85 claims across 3 drugs.
Dr. Ruiz's Part D claims by kind of drug, 2024
- Generic217 claims94%
- Brand-name and other14 claims6%
Dr. Ruiz'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. Ruiz's Part D claims, 2024
- Opioids26%59 of 231 claims
- Antibiotics30%69 of 231 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: 852024: 183115%
Drugs named by CMS: 7 in 2024, 3 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. Carmen Ruiz ranks in the 47th percentile for colonoscopy in Medicare
Dr. Ruiz accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 19 procedures of colonoscopy by Dr. Ruiz, more than 47% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Ruiz ranks in Medicare procedure volume
- Colonoscopy
- 47th percentile19 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Skin biopsy: 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. Carmen Ruiz has 2 publications on record
Dmand AI links 2 papers to Dr. Ruiz, published from 2015 to 2021. Dr. Ruiz's most frequent co-authors are Christopher J. Logothetis, MD, Edward F. McClay, MD and Wolfram E. Samlowski, MD.
Dr. Ruiz's most frequent co-authors
- Christopher J. Logothetis, MD1 shared paper
- Edward F. McClay, MD1 shared paper
- Wolfram E. Samlowski, MD1 shared paper
Recent publications by Dr. Ruiz
See who Dr. Ruiz researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ruiz works with, so you can find a warm path to the right colorectal surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Carmen Ruiz received $13,179 in industry payments from 2018 to 2024
CMS Open Payments shows 20 general payments to Dr. Ruiz from 3 drug and device companies from 2018 to 2024. Education make up the largest share, 99% of the total. Intuitive Surgical, Inc. paid the most, $13,115.
General payments to Dr. Ruiz by program year, 2018 to 2024
General payments to Dr. Ruiz by kind, 2018 to 2024
- Education$13,01599%
- Food and beverage$1641%
Companies that paid Dr. Ruiz the most, 2018 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Carmen Ruiz has 1 award and honors on record
Dmand AI lists 1 award for Dr. Ruiz.
Awards and honors for Dr. Ruiz
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. Carmen Ruiz graduated from Harvard Medical School
Dr. Ruiz graduated from Harvard Medical School in 1996. Dr. Ruiz is a member of ACS.
- Medical school
- Board certified in colon & rectal surgery
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Carmen Ruiz accepts plans from 15 insurance carriers
Dr. Ruiz is in network with 15 carriers, including Aetna, Elevance and United Healthcare. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Elevance
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- LA Care
- Molina
- +7 more carriersWith a free account
Plan types Dr. Ruiz accepts, by number of carriers
- Medicare10
- PPO9
- HMO8
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Carmen Ruiz'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)Doctors and Clinicians Utilization Data (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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Carmen Ruiz
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. Carmen Ruiz's NPI number?
Dr. Carmen Ruiz's NPI number is 1003886490. It was assigned on January 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Carmen Ruiz?
Dr. Carmen Ruiz is a colorectal surgeon in Long Beach, California. The primary specialty in the NPI Registry is Colon & Rectal Surgery Physician (taxonomy code 208C00000X).
Where does Dr. Carmen Ruiz practice?
Dr. Ruiz practices at 1050 Linden Ave, Long Beach, CA 90813. Dr. Ruiz's primary practice is Dignity Health - St. Mary Medical Center in Long Beach, California, part of CommonSpirit Health. Dmand AI also links Dr. Ruiz to 1 physician office, 1 group practice or clinic and 1 medical group.
What is Dr. Carmen Ruiz's office phone number?
The practice phone on file for Dr. Ruiz is (562) 491-9000.
What is Dr. Carmen Ruiz's medical license number?
Dr. Ruiz holds California license C146537, one of the licenses on file in 3 states.
Which states has Dr. Carmen Ruiz been licensed in?
Dmand AI has state licenses on file for Dr. Ruiz in California (2016 to 2026), Oklahoma (2003 to 2017) and Minnesota (2001 to 2004).
Which hospitals is Dr. Carmen Ruiz affiliated with?
Dr. Ruiz practices at Dignity Health - St. Mary Medical Center in Long Beach, California. Dr. Ruiz is also affiliated with Dignity Health - Glendale Memorial Hospital and Health Center.
Does Dr. Carmen Ruiz accept Medicare?
Yes. CMS data shows Dr. Ruiz billed Medicare for 82 services in 2024, and Dr. Ruiz accepts Medicare assignment.
How many Medicare patients does Dr. Carmen Ruiz see?
CMS counts 63 Medicare patients who saw Dr. Ruiz in 2024, with an average age of 72.
Is Dr. Carmen Ruiz board certified?
Yes. Dr. Ruiz is board certified in colon & rectal surgery by the American Board of Colon and Rectal Surgery.
Show 8 more questionsShow fewer questions
What services does Dr. Carmen Ruiz bill to Medicare?
In 2024, Dr. Ruiz's most billed Medicare services were office visit, established patient (99214), surgery: digestive system (46600) and office visit, new patient (99204).
Where did Dr. Carmen Ruiz go to medical school?
Dr. Ruiz graduated from Harvard Medical School in 1996.
What drugs does Dr. Carmen Ruiz prescribe most?
In 2024 Medicare Part D data, Dr. Ruiz's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Gavilyte-G and Metronidazole.
Has Dr. Carmen Ruiz received payments from drug or device companies?
CMS Open Payments shows $13,179 in general payments to Dr. Ruiz from 3 companies from 2018 to 2024. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Carmen Ruiz been practicing?
Dr. Ruiz graduated from medical school in 1996, 30 years ago.
Does Dr. Carmen Ruiz do research?
Dmand AI links 2 publications to Dr. Ruiz, published from 2015 to 2021.
Who does Dr. Carmen Ruiz publish with?
Dr. Ruiz's most frequent co-authors are Christopher J. Logothetis, MD (1 shared paper), Edward F. McClay, MD (1 shared paper) and Wolfram E. Samlowski, MD (1 shared paper).
What insurance does Dr. Carmen Ruiz accept?
Dr. Ruiz is in network with 15 carriers, including Aetna, Elevance and United Healthcare. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.
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