Dr. Mallory Cless, MD
- Medicare services, 2024
- 338
- Medicare patients, 2024
- 170
- Part D claims, 2024
- 384
- Publications
- 2
- Hospital affiliations
- 4
- Practice address
- 2637 Shadelands Drive, Walnut Creek, CA 94598
- Practice phone
- Call (925) 329-3710
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
BASS Imaging Center - Walnut Creek
Mammography / Breast Imaging Center · Walnut Creek, California
Find Dr. Cless' 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. Mallory Cless is a family medicine physician in Walnut Creek, California
Dr. Cless practices at BASS Imaging Center - Walnut Creek in Walnut Creek, California.
Dr. Cless' NPI, 1649847203, was assigned on June 10, 2021. Dr. Cless graduated from University of California, San Diego School of Medicine in 2021. Dr. Cless holds California license A184411.
- NPI
- 1649847203NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012362718
- NPI enumeration date
- June 10, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (925) 329-3710
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mallory Cless practices at BASS Imaging Center - Walnut Creek in Walnut Creek, California
Dr. Cless' primary practice is BASS Imaging Center - Walnut Creek, at 2637 Shadelands Drive, Walnut Creek, CA 94598. The practice phone is (925) 329-3710.
- BASS Imaging Center - Walnut Creek2637 Shadelands Drive, Walnut Creek, CA 94598Phone(925) 329-3710
Source: Dmand AI Affiliation Data
Dr. Mallory Cless is affiliated with 8 sites of care and 2 medical groups
Dr. Cless' primary practice is BASS Imaging Center - Walnut Creek in Walnut Creek, California. Dr. Cless is also affiliated with John Muir Medical Center, Walnut Creek. The medical group on file is BASS Medical Group. Dmand AI also links Dr. Cless to 3 more hospitals, 2 home health agencies, 1 group practice or clinic and 1 medical group, each named with a free account. Dr. Cless' employer is on file too: a breast imaging center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mallory Cless' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cless practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| BASS Imaging Center - Walnut Creek | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mallory Cless is one of 15,680 family medicine physicians in California
Family medicine is Dr. Cless' primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Cless is licensed in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Family medicine physicians near Dr. Cless
Counts of family 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. Mallory Cless billed Medicare for 338 services in 2024
CMS data shows 338 Medicare services from Dr. Cless across 8 procedure codes in 2024, for 170 Medicare patients. Medicare paid $26,155 for them. Every service was in an office.
Dr. Cless' Medicare services by type, 2024
- Office and hospital visits206
- Tests and treatments54
- Lab and pathology40
- Other services38
Dr. Cless compared with the California median for family medicine physicians, 2024
- Dr. Cless
- California median
- Medicare services
- 338vs 24637% above
- Medicare patients
- 170vs 11844% above
- Part D claims
- 103vs 83388% below
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Cless' 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. Cless?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Cless and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mallory Cless treated 170 Medicare patients in 2024, average age 74
CMS counts 170 Medicare patients who saw Dr. Cless in 2024. The largest group is 65 to 74, with 95 patients. 75% of them have high cholesterol, and 56% have high blood pressure. Their average risk score is 0.75, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Cless' median patient age at 58, with 63% women.
Dr. Cless' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Cless' Medicare patients by sex, 2024
- Women10059%
- Men7041%
Chronic conditions among Dr. Cless' Medicare patients, 2024
- High cholesterol75%
- High blood pressure56%
- Arthritis42%
- Anxiety24%
- Ischemic heart disease21%
- Mood disorders20%
- Depression18%
- Osteoporosis16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Cless' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women63%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mallory Cless wrote 384 Medicare Part D claims in 2024
In 2024, Dr. Cless wrote 384 Medicare Part D claims for 160 patients. 87% of them were for generic drugs. CMS names the drug for 103 of them, across 5 drugs with 11 or more claims each, at $718 in total drug cost. In 2023, CMS named 71 claims across 4 drugs.
Dr. Cless' Part D claims by kind of drug, 2024
- Generic334 claims87%
- Brand-name50 claims13%
Dr. Cless' 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. Cless' Part D claims, 2024
- Opioids3%12 of 384 claims
- Antibiotics7%26 of 384 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: 712024: 10345%
Drugs named by CMS: 5 in 2024, 4 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. Mallory Cless ranks in the 73rd percentile for removal or shaving of skin growth in Medicare
Dr. Cless accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Cless as offering telehealth. CMS counts 26 procedures of removal or shaving of skin growth by Dr. Cless, more than 73% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Where Dr. Cless ranks in Medicare procedure volume
- Removal of skin lesions
- 72nd percentile58 procedures
- Removal or shaving of skin growth
- 73rd percentile26 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 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. Mallory Cless has 2 publications on record
Dmand AI links 2 papers to Dr. Cless, published from 2021 to 2023. Dr. Cless' most frequent co-authors are Matthew A. Allison, MD, Kush Vijay Bhatt, MD and Carla Beth Marienfeld, MD.
Dr. Cless' most frequent co-authors
- Matthew A. Allison, MD1 shared paper
- Kush Vijay Bhatt, MD1 shared paper
- Carla Beth Marienfeld, MD1 shared paper
Recent publications by Dr. Cless
Diabetes Metab Res Rev
See who Dr. Cless researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Cless works with, so you can find a warm path to the right family medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mallory Cless received $3,278 in industry payments from 2024 to 2025
CMS Open Payments shows 156 general payments to Dr. Cless from 42 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $391.
General payments to Dr. Cless by program year, 2024 to 2025
Companies that paid Dr. Cless the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mallory Cless graduated from University of California, San Diego School of Medicine
Dr. Cless graduated from University of California, San Diego School of Medicine in 2021.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mallory Cless'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) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Mallory Cless
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. Mallory Cless' NPI number?
Dr. Mallory Cless' NPI number is 1649847203. It was assigned on June 10, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Mallory Cless?
Dr. Mallory Cless is a family medicine physician in Walnut Creek, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Mallory Cless practice?
Dr. Cless practices at 2637 Shadelands Drive, Walnut Creek, CA 94598. Dr. Cless' primary practice is BASS Imaging Center - Walnut Creek in Walnut Creek, California. Dmand AI also links Dr. Cless to 3 hospitals, 2 home health agencies, 1 group practice or clinic and 1 medical group.
What is Dr. Mallory Cless' office phone number?
The practice phone on file for Dr. Cless is (925) 329-3710.
What is Dr. Mallory Cless' medical license number?
Dr. Cless holds California license A184411.
Which hospitals is Dr. Mallory Cless affiliated with?
Dr. Cless is affiliated with John Muir Medical Center, Walnut Creek. Dmand AI links Dr. Cless to 3 more hospitals.
What medical group is Dr. Mallory Cless part of?
Dr. Cless is linked to BASS Medical Group. Dmand AI links Dr. Cless to 1 more medical group.
Does Dr. Mallory Cless accept Medicare?
Yes. CMS data shows Dr. Cless billed Medicare for 338 services in 2024, and Dr. Cless accepts Medicare assignment.
Does Dr. Mallory Cless offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Cless as offering telehealth services.
How many Medicare patients does Dr. Mallory Cless see?
CMS counts 170 Medicare patients who saw Dr. Cless in 2024, with an average age of 74.
Show 7 more questionsShow fewer questions
What services does Dr. Mallory Cless bill to Medicare?
In 2024, Dr. Cless' most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and lab and pathology test (81002).
Where did Dr. Mallory Cless go to medical school?
Dr. Cless graduated from University of California, San Diego School of Medicine in 2021.
What drugs does Dr. Mallory Cless prescribe most?
In 2024 Medicare Part D data, Dr. Cless' most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Rosuvastatin Calcium.
Has Dr. Mallory Cless received payments from drug or device companies?
CMS Open Payments shows $3,278 in general payments to Dr. Cless from 42 companies from 2024 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Mallory Cless been practicing?
Dr. Cless graduated from medical school in 2021, 5 years ago.
Does Dr. Mallory Cless do research?
Dmand AI links 2 publications to Dr. Cless, published from 2021 to 2023.
Who does Dr. Mallory Cless publish with?
Dr. Cless' most frequent co-authors are Matthew A. Allison, MD (1 shared paper), Kush Vijay Bhatt, MD (1 shared paper) and Carla Beth Marienfeld, MD (1 shared paper).
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