Dr. Catharine Hunt Marshall, MD
- Medicare services, 2024
- 127
- Medicare patients, 2024
- 78
- Part D claims, 2024
- 304
- Hospital affiliations
- 2
- Industry payments
- $7,061
- Practice address
- 9888 Genesee Avenue, La Jolla, CA 92037
- Practice phone
- Call (858) 626-4123
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Marshall'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. Catharine Hunt Marshall is an OB-GYN in La Jolla, California
Dr. Marshall practices at Scripps Memorial Hospital La Jolla in La Jolla, California, part of Scripps Health.
Dr. Marshall's NPI, 1891877049, was assigned on October 19, 2006. Dr. Marshall graduated from Loyola University Chicago Stritch School of Medicine in 1996. Dr. Marshall's California license number on file is A64910.
- NPI
- 1891877049NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648204123
- NPI enumeration date
- October 19, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (858) 626-4123
- 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. Catharine Hunt Marshall practices at Scripps Memorial Hospital La Jolla in La Jolla, California
Dr. Marshall's primary practice is Scripps Memorial Hospital La Jolla, at 9888 Genesee Avenue, La Jolla, CA 92037 in San Diego County. The practice phone is (858) 626-4123.
- Scripps Memorial Hospital La Jolla9888 Genesee Avenue, La Jolla, CA 92037 · San Diego CountyPhone(858) 626-4123
Source: Dmand AI Affiliation Data
Dr. Catharine Hunt Marshall is affiliated with 3 sites of care and 1 medical group
Dr. Marshall's primary practice is Scripps Memorial Hospital La Jolla in La Jolla, California, part of Scripps Health. Dr. Marshall is also affiliated with Scripps Green Hospital. Dmand AI also links Dr. Marshall to 1 more 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. Catharine Hunt Marshall's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marshall practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Scripps Memorial Hospital La Jolla | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Catharine Hunt Marshall is one of 4,642 OB-GYNs in California
Obstetrics and gynecology is Dr. Marshall's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Marshall is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology. Dr. Marshall has a license on file in California.
Specialties and state licenses
- Obstetrics and gynecology, CaliforniaPrimary
Clinical focus
Dmand AI lists hysterectomy, menopause and UTI among the conditions Dr. Marshall treats.
OB-GYNs near Dr. Marshall
Counts of OB-GYNs 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. Catharine Hunt Marshall billed Medicare for 127 services in 2024
CMS data shows 127 Medicare services from Dr. Marshall across 4 procedure codes in 2024, for 78 Medicare patients. Medicare paid $9,030 for them. Every service was in an office.
Dr. Marshall's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 792024: 6222%
- Office and hospital visits
- 2023: 292024: 4452%
- Imaging
- 2023: 02024: 21
Dr. Marshall compared with the California median for OB-GYNs, 2024
- Dr. Marshall
- California median
- Medicare services
- 127vs 582.2 times
- Medicare patients
- 78vs 5250% above
- Part D claims
- 172vs 354.9 times
Medians across 3,823 OB-GYNs in California with Dmand AI profiles that report each measure.
Dr. Marshall'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. Marshall?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Marshall and other OB-GYNs in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Catharine Hunt Marshall treated 78 Medicare patients in 2024, average age 74
CMS counts 78 Medicare patients who saw Dr. Marshall in 2024. The largest group is 65 to 74, with 40 patients. 68% of them have high cholesterol, and 42% have high blood pressure. Their average risk score is 0.84, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Marshall's median patient age at 52, with 97% women.
Dr. Marshall's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Marshall's Medicare patients, 2024
- High cholesterol68%
- High blood pressure42%
- Arthritis40%
- Osteoporosis33%
- Ischemic heart disease27%
- Mood disorders23%
- Anxiety22%
- Depression18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Marshall's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women97%
- Men1%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Catharine Hunt Marshall wrote 304 Medicare Part D claims in 2024
In 2024, Dr. Marshall wrote 304 Medicare Part D claims for 74 patients. 77% of them were for generic drugs. CMS names the drug for 172 of them, across 8 drugs with 11 or more claims each, at $24,637 in total drug cost. In 2023, CMS named 185 claims across 10 drugs.
Dr. Marshall's Part D claims by kind of drug, 2024
- Generic233 claims77%
- Brand-name71 claims23%
Dr. Marshall'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1852024: 1727%
Drugs named by CMS: 8 in 2024, 10 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. Catharine Hunt Marshall offers telehealth to Medicare patients
Dr. Marshall accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Marshall as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of the uterus: 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. Catharine Hunt Marshall received $7,061 in industry payments from 2016 to 2025
CMS Open Payments shows 106 general payments to Dr. Marshall from 32 drug and device companies from 2016 to 2025. Education make up the largest share, 58% of the total. Intuitive Surgical, Inc. paid the most, $4,110.
General payments to Dr. Marshall by program year, 2016 to 2025
General payments to Dr. Marshall by kind, 2016 to 2025
- Education$4,11858%
- Food and beverage$2,94342%
Companies that paid Dr. Marshall the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Catharine Hunt Marshall graduated from Loyola University Chicago Stritch School of Medicine
Dr. Marshall graduated from Loyola University Chicago Stritch School of Medicine in 1996.
- Medical school
- Board certified in obstetrics & gynecology
Source: Dmand AI Professional Profile Data
Dr. Catharine Hunt Marshall accepts plans from 15 insurance carriers
Dr. Marshall is in network with 15 carriers, including Aetna, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Elevance
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- Regence Health Plans
- Alliant Health Plans
- +7 more carriersWith a free account
Plan types Dr. Marshall accepts, by number of carriers
- PPO9
- HMO7
- Medicare6
- EPO4
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Catharine Hunt Marshall'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) |
| 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. Catharine Hunt Marshall
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. Catharine Hunt Marshall's NPI number?
Dr. Catharine Hunt Marshall's NPI number is 1891877049. It was assigned on October 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Catharine Hunt Marshall?
Dr. Catharine Hunt Marshall is an OB-GYN in La Jolla, California. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Catharine Hunt Marshall practice?
Dr. Marshall practices at 9888 Genesee Avenue, La Jolla, CA 92037. Dr. Marshall's primary practice is Scripps Memorial Hospital La Jolla in La Jolla, California, part of Scripps Health. Dmand AI also links Dr. Marshall to 1 group practice or clinic and 1 medical group.
What is Dr. Catharine Hunt Marshall's office phone number?
The practice phone on file for Dr. Marshall is (858) 626-4123.
What is Dr. Catharine Hunt Marshall's medical license number?
Dr. Marshall's California license number on file is A64910.
Which hospitals is Dr. Catharine Hunt Marshall affiliated with?
Dr. Marshall practices at Scripps Memorial Hospital La Jolla in La Jolla, California. Dr. Marshall is also affiliated with Scripps Green Hospital.
Does Dr. Catharine Hunt Marshall accept Medicare?
Yes. CMS data shows Dr. Marshall billed Medicare for 127 services in 2024, and Dr. Marshall accepts Medicare assignment.
Does Dr. Catharine Hunt Marshall offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Marshall as offering telehealth services.
How many Medicare patients does Dr. Catharine Hunt Marshall see?
CMS counts 78 Medicare patients who saw Dr. Marshall in 2024, with an average age of 74.
Is Dr. Catharine Hunt Marshall board certified?
Yes. Dr. Marshall is board certified in obstetrics & gynecology by the American Board of Obstetrics and Gynecology.
Show 6 more questionsShow fewer questions
What services does Dr. Catharine Hunt Marshall bill to Medicare?
In 2024, Dr. Marshall's most billed Medicare services were medicare service (G0101), office visit, established patient (99214) and ultrasound (76856).
Where did Dr. Catharine Hunt Marshall go to medical school?
Dr. Marshall graduated from Loyola University Chicago Stritch School of Medicine in 1996.
What drugs does Dr. Catharine Hunt Marshall prescribe most?
In 2024 Medicare Part D data, Dr. Marshall's most prescribed drugs by claims were Estradiol, Progesterone and Valacyclovir.
Has Dr. Catharine Hunt Marshall received payments from drug or device companies?
CMS Open Payments shows $7,061 in general payments to Dr. Marshall from 32 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Catharine Hunt Marshall been practicing?
Dr. Marshall graduated from medical school in 1996, 30 years ago.
What insurance does Dr. Catharine Hunt Marshall accept?
Dr. Marshall is in network with 15 carriers, including Aetna, 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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