Kelliann Marie Masterson, PA

  • San Francisco, CA
  • Physician assistant
NPI1275046740PAC ID8527318138
Medicare services, 2024
24
Medicare patients, 2024
37
Part D claims, 2024
22
Industry payments
$234
Affiliated sites
2
Practice address
2175 Market St, San Francisco, CA 94114
Practice phone
Call (415) 578-3100
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

One Medical Group

San Francisco, California

See all 5 affiliations

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Kelliann Marie Masterson is a physician assistant in San Francisco, California

Kelliann Masterson practices at One Medical Group in San Francisco, California.

Kelliann Masterson's NPI, 1275046740, was assigned on November 7, 2017. Kelliann Masterson holds California license 55354.

NPI and contact details
Medicare PAC ID
8527318138
NPI enumeration date
November 7, 2017
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(415) 578-3100
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
35
Medical school graduation
2017

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Kelliann Marie Masterson practices at One Medical Group in San Francisco, California

Kelliann Masterson's primary practice is One Medical Group, at 2175 Market St, San Francisco, CA 94114 in San Francisco County. The practice phone is (415) 578-3100.

  • One Medical Group
    2175 Market St, San Francisco, CA 94114 · San Francisco CountyPhone(415) 578-3100

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Kelliann Marie Masterson is affiliated with 3 sites of care and 2 medical groups

Kelliann Masterson's primary practice is One Medical Group in San Francisco, California. The medical group on file is One Medical. Dmand AI also links Kelliann Masterson to 2 more group practices and clinics and 1 medical group, each named with a free account.

See all 5 affiliations for Kelliann Masterson

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Kelliann Marie Masterson's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Kelliann Masterson practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
One Medical GroupAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Kelliann Marie Masterson is one of 11,482 physician assistants in California

Physician assistant is Kelliann Masterson's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Kelliann Masterson is licensed in California.

Specialties and state licenses

  • Physician assistant, CaliforniaPrimaryLicense 55354 · taxonomy 363A00000X

Clinical focus

Dmand AI lists acute skin infection, conjunctivitis, joint pain, lower back pain, minor injury on trunk, muscle pain, fibromyalgia, and limb pain, skin cyst and UTI among the conditions Kelliann Masterson treats.

Physician assistants near Kelliann Masterson

Counts of physician assistants 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

Kelliann Marie Masterson billed Medicare for 24 services in 2024

CMS data shows 24 Medicare services from Kelliann Masterson across 1 procedure code in 2024, all of them office visits, for 37 Medicare patients. Medicare paid $1,208 for them. Every service was in an office.

Medicare services, 202424
Medicare patients37
Paid by Medicare$1,208
Procedure codes1

Kelliann Masterson compared with the California median for physician assistants, 2024

  • Kelliann Masterson
  • California median
Medicare services
24vs 20488% below
Medicare patients
37vs 10565% below

Medians across 7,065 physician assistants in California with Dmand AI profiles that report each measure.

Kelliann Masterson'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.

See all procedures by Kelliann Masterson

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Medicare shows one payer. Book a meeting to get commercial claims data for Kelliann Masterson and other physician assistants in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Kelliann Marie Masterson treated 37 Medicare patients in 2024, average age 73

CMS counts 37 Medicare patients who saw Kelliann Masterson in 2024. The largest group is 65 to 74, with 23 patients. 57% of them have high cholesterol, and 51% have mood disorders. Their average risk score is 1.38, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Kelliann Masterson's median patient age at 41, with 40% women.

Medicare patients, 202437
Average age73
Average risk score1.38

Kelliann Masterson's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Kelliann Masterson's Medicare patients by sex, 2024

  • Women2465%
  • Men1335%

Chronic conditions among Kelliann Masterson's Medicare patients, 2024

  1. High cholesterol57%
  2. Mood disorders51%
  3. High blood pressure46%
  4. Arthritis43%
  5. Depression41%
  6. Cancer35%
  7. Anxiety32%

Share of Medicare patients with each condition. A patient can have several.

Kelliann Masterson's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 41

Patient panel by sex, all payers

  • Women40%
  • Men55%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Kelliann Marie Masterson wrote 22 Medicare Part D claims in 2024

In 2024, Kelliann Masterson wrote 22 Medicare Part D claims for 16 patients. 82% of them were for generic drugs.

Part D claims, 202422
Part D patients16

Kelliann Masterson's Part D claims by kind of drug, 2024

  • Generic18 claims82%
  • Brand-name and other4 claims18%

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Kelliann Marie Masterson takes part in Medicare

Kelliann Masterson 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)

For MedTech and pharma teams

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Kelliann Marie Masterson received $234 in industry payments from 2024 to 2025

CMS Open Payments shows 2 general payments to Kelliann Masterson from 2 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Madrigal Pharmaceuticals paid the most, $130.

General payments to Kelliann Masterson by program year, 2024 to 2025

Companies that paid Kelliann Masterson the most, 2024 to 2025

Share is of all general payments to this clinician.

See all payments to Kelliann Masterson

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Kelliann Marie Masterson's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Kelliann Marie Masterson

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Kelliann Marie Masterson's NPI number?

Kelliann Marie Masterson's NPI number is 1275046740. It was assigned on November 7, 2017, and it is active in the NPI Registry.

What does Kelliann Marie Masterson specialize in?

Kelliann Marie Masterson is a physician assistant in San Francisco, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Kelliann Marie Masterson practice?

Kelliann Masterson practices at 2175 Market St, San Francisco, CA 94114. Kelliann Masterson's primary practice is One Medical Group in San Francisco, California. Dmand AI also links Kelliann Masterson to 2 group practices and clinics and 1 medical group.

What is Kelliann Marie Masterson's office phone number?

The practice phone on file for Kelliann Masterson is (415) 578-3100.

What is Kelliann Marie Masterson's medical license number?

Kelliann Masterson holds California license 55354.

What medical group is Kelliann Marie Masterson part of?

Kelliann Masterson is linked to One Medical. Dmand AI links Kelliann Masterson to 1 more medical group.

Does Kelliann Marie Masterson accept Medicare?

Yes. CMS data shows Kelliann Masterson billed Medicare for 24 services in 2024, and Kelliann Masterson accepts Medicare assignment.

How many Medicare patients does Kelliann Marie Masterson see?

CMS counts 37 Medicare patients who saw Kelliann Masterson in 2024, with an average age of 73.

What services does Kelliann Marie Masterson bill to Medicare?

In 2024, Kelliann Masterson's most billed Medicare services were office visit, established patient (99213).

Has Kelliann Marie Masterson received payments from drug or device companies?

CMS Open Payments shows $234 in general payments to Kelliann Masterson from 2 companies from 2024 to 2025. The largest total came from Madrigal Pharmaceuticals.

How long has Kelliann Marie Masterson been practicing?

Kelliann Masterson graduated from medical school in 2017, 9 years ago.

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