Dr. Kathleen Blaney Marshall, MD
- Medicare services, 2020
- 1,035
- Part D claims, 2024
- 1,944
- Hospital affiliations
- 3
- Industry payments
- $500
- Medical groups
- 3
- Practice address
- 2960 Camino Diablo, Walnut Creek, CA 94597
- Practice phone
- Call (800) 892-2695
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Bright Heart Health, Inc.
Walnut Creek, California
Find Dr. Marshall's professional email, personal email and mobile number
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Dr. Kathleen Blaney Marshall is a geriatric medicine (internal medicine) physician in Walnut Creek, California
Dr. Marshall practices at Bright Heart Health, Inc. in Walnut Creek, California.
Dr. Marshall's NPI, 1063646586, was assigned on May 12, 2009. Dr. Marshall holds North Carolina license 2019-00296.
- NPI
- 1063646586NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052642923
- NPI enumeration date
- May 12, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (800) 892-2695
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Kathleen Blaney Marshall practices at Bright Heart Health, Inc. in Walnut Creek, California
Dr. Marshall's primary practice is Bright Heart Health, Inc., at 2960 Camino Diablo, Walnut Creek, CA 94597 in Contra Costa County. The practice phone is (800) 892-2695.
- Bright Heart Health, Inc.2960 Camino Diablo, Walnut Creek, CA 94597 · Contra Costa CountyPhone(800) 892-2695
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Kathleen Blaney Marshall is affiliated with 9 sites of care and 3 medical groups
Dr. Marshall's primary practice is Bright Heart Health, Inc. in Walnut Creek, California. Dr. Marshall is also affiliated with Mission Hospital. The medical group on file is Bright Heart Health. Dmand AI also links Dr. Marshall to 2 more hospitals, 3 group practices and clinics, 2 medical groups, 1 behavioral health center and 1 home health agency, each named with a free account. Dr. Marshall's employer is on file too: a behavioral health center.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Kathleen Blaney Marshall's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marshall practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bright Heart Health, Inc. | Available with a free account |
| +8 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Kathleen Blaney Marshall is one of 497 geriatric medicine (internal medicine) physicians in California
Geriatric medicine is Dr. Marshall's primary specialty in the NPI Registry, under taxonomy code 207RG0300X. Dmand AI has Dr. Marshall's licenses on file in 3 states: North Carolina, Montana and New York.
Specialties and state licenses
- Geriatric medicine (internal medicine), North CarolinaPrimary
- Montana license
- Internal medicine, New York
Geriatric medicine (internal medicine) physicians near Dr. Marshall
Counts of geriatric medicine (internal 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. Kathleen Blaney Marshall billed Medicare for 1,035 services in 2020
CMS data shows 1,035 Medicare services from Dr. Marshall across 7 procedure codes in 2020. Medicare paid $78,776 for them.
Dr. Marshall's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 3132020: 1,035231%
Where Dr. Marshall's Medicare services took place, 2020
- In an office47646%
- In a facility55954%
Dr. Marshall compared with the California median for geriatric medicine (internal medicine) physicians, 2020
- Dr. Marshall
- California median
- Medicare services
- 1,035vs 4242.4 times
- Part D claims
- 1,412vs 93052% above
Medians across 466 geriatric medicine (internal medicine) physicians in California with Dmand AI profiles that report each measure.
Dr. Marshall's most billed Medicare procedure codes, 2020
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. Marshall and other geriatric medicine (internal medicine) physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Kathleen Blaney Marshall's patients have a median age of 78
Across all payers, Dmand AI patient panel data puts Dr. Marshall's median patient age at 78, with 72% women.
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 78
Patient panel by sex, all payers
- Women72%
- Men27%
Source: Dmand AI Patient Panel Data
Dr. Kathleen Blaney Marshall wrote 1,944 Medicare Part D claims in 2024
In 2024, Dr. Marshall wrote 1,944 Medicare Part D claims for 106 patients. 85% of them were for generic drugs. CMS names the drug for 1,412 of them, across 48 drugs with 11 or more claims each, at $126,917 in total drug cost. In 2023, CMS named 1,008 claims across 39 drugs.
Dr. Marshall's Part D claims by kind of drug, 2024
- Generic1,657 claims85%
- Brand-name272 claims14%
- Other15 claims1%
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.
Drug classes CMS tracks in Dr. Marshall's Part D claims, 2024
- Opioids4%72 of 1,944 claims
- Antibiotics3%49 of 1,944 claims
- Antipsychotics, patients 65 and over1%18 of 1,944 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: 1,0082024: 1,41240%
Drugs named by CMS: 48 in 2024, 39 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. Kathleen Blaney Marshall takes part in Medicare
Dr. Marshall 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. Kathleen Blaney Marshall received $500 in industry payments from 2019 to 2025
CMS Open Payments shows 19 general payments to Dr. Marshall from 8 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 100% of the total. Eisai Inc. paid the most, $221.
General payments to Dr. Marshall by program year, 2019 to 2025
Companies that paid Dr. Marshall the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Kathleen Blaney 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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 Data |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Kathleen Blaney 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. Kathleen Blaney Marshall's NPI number?
Dr. Kathleen Blaney Marshall's NPI number is 1063646586. It was assigned on May 12, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Kathleen Blaney Marshall?
Dr. Kathleen Blaney Marshall is a geriatric medicine (internal medicine) physician in Walnut Creek, California. The primary specialty in the NPI Registry is Geriatric Medicine (Internal Medicine) Physician (taxonomy code 207RG0300X).
Where does Dr. Kathleen Blaney Marshall practice?
Dr. Marshall practices at 2960 Camino Diablo, Walnut Creek, CA 94597. Dr. Marshall's primary practice is Bright Heart Health, Inc. in Walnut Creek, California. Dmand AI also links Dr. Marshall to 2 hospitals, 3 group practices and clinics, 2 medical groups, 1 behavioral health center and 1 home health agency.
What is Dr. Kathleen Blaney Marshall's office phone number?
The practice phone on file for Dr. Marshall is (800) 892-2695.
What is Dr. Kathleen Blaney Marshall's medical license number?
Dr. Marshall holds North Carolina license 2019-00296, one of the licenses on file in 3 states.
Which states has Dr. Kathleen Blaney Marshall been licensed in?
Dmand AI has state licenses on file for Dr. Marshall in North Carolina, Montana and New York.
Which hospitals is Dr. Kathleen Blaney Marshall affiliated with?
Dr. Marshall is affiliated with Mission Hospital. Dmand AI links Dr. Marshall to 2 more hospitals.
What medical group is Dr. Kathleen Blaney Marshall part of?
Dr. Marshall is linked to Bright Heart Health. Dmand AI links Dr. Marshall to 2 more medical groups.
Does Dr. Kathleen Blaney Marshall accept Medicare?
Yes. CMS data shows Dr. Marshall billed Medicare for 1,035 services in 2020, and Dr. Marshall accepts Medicare assignment.
What services does Dr. Kathleen Blaney Marshall bill to Medicare?
In 2020, Dr. Marshall's most billed Medicare services were nursing facility care (99309), nursing facility care (99308) and nursing facility care (99305).
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What drugs does Dr. Kathleen Blaney Marshall prescribe most?
In 2024 Medicare Part D data, Dr. Marshall's most prescribed drugs by claims were Amlodipine Besylate, Atorvastatin Calcium and Sertraline HCl.
Has Dr. Kathleen Blaney Marshall received payments from drug or device companies?
CMS Open Payments shows $500 in general payments to Dr. Marshall from 8 companies from 2019 to 2025. The largest total came from Eisai Inc.
How long has Dr. Kathleen Blaney Marshall been practicing?
Dr. Marshall graduated from medical school in 2009, 17 years ago.
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