Dr. Mckenzie Marie Tolan, MD

  • Walnut Creek, CA
  • Otolaryngologist
NPI1750901906PAC ID6709209455
Part D claims, 2024
43
Hospital affiliations
4
Industry payments
$2,087
Medical group
1
State license
1
Practice address
2637 Shadelands Drive, Walnut Creek, CA 94598
Practice phone
Call (925) 329-3710
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

BASS Imaging Center - Walnut Creek

Mammography / Breast Imaging Center · Walnut Creek, California

See all 7 affiliations

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Dr. Mckenzie Marie Tolan is an otolaryngologist in Walnut Creek, California

Dr. Tolan practices at BASS Imaging Center - Walnut Creek in Walnut Creek, California.

Dr. Tolan's NPI, 1750901906, was assigned on April 17, 2020. Dr. Tolan graduated from University of Minnesota Medical School in 2020. Dr. Tolan holds California license 201596.

NPI and contact details
Medicare PAC ID
6709209455
NPI enumeration date
April 17, 2020
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(925) 329-3710
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
32
Medical school graduation
2020

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

Dr. Mckenzie Marie Tolan practices at BASS Imaging Center - Walnut Creek in Walnut Creek, California

Dr. Tolan's 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 Creek
    2637 Shadelands Drive, Walnut Creek, CA 94598Phone(925) 329-3710

Source: Dmand AI Affiliation Data

Dr. Mckenzie Marie Tolan is affiliated with 6 sites of care and 1 medical group

Dr. Tolan's primary practice is BASS Imaging Center - Walnut Creek in Walnut Creek, California. Dr. Tolan is also affiliated with Providence Santa Rosa Memorial Hospital. The medical group on file is BASS Medical Group. Dmand AI also links Dr. Tolan to 3 more hospitals and 1 group practice or clinic, each named with a free account. Dr. Tolan's employer is on file too: a breast imaging center.

See all 7 affiliations for Dr. Tolan

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Mckenzie Marie Tolan's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tolan practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
BASS Imaging Center - Walnut CreekAvailable with a free account
+5 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Mckenzie Marie Tolan is one of 1,107 otolaryngologists in California

Otolaryngology is Dr. Tolan's primary specialty in the NPI Registry, under taxonomy code 207Y00000X. Dr. Tolan is licensed in California.

Specialties and state licenses

  • Otolaryngology, CaliforniaPrimaryLicense 201596 · taxonomy 207Y00000X

Otolaryngologists near Dr. Tolan

Counts of otolaryngologists 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. Mckenzie Marie Tolan's patients have a median age of 63

Across all payers, Dmand AI patient panel data puts Dr. Tolan's median patient age at 63, with 54% women.

Dr. Tolan's patients across all payers

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

Patient panel by age, all payers

Median age 63

Patient panel by sex, all payers

  • Women54%
  • Men43%

Source: Dmand AI Patient Panel Data

Dr. Mckenzie Marie Tolan wrote 43 Medicare Part D claims in 2024

In 2024, Dr. Tolan wrote 43 Medicare Part D claims for 26 patients. 98% of them were for generic drugs. CMS names the drug for 16 of them, across 1 drug with 11 or more claims each, at $140 in total drug cost.

Part D claims, 202443
Drugs named by CMS1
Total drug cost$140
Part D patients26

Dr. Tolan's Part D claims by kind of drug, 2024

  • Generic42 claims98%
  • Brand-name and other1 claims2%

Dr. Tolan'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. Tolan's Part D claims, 2024

  • Opioids40%17 of 43 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

See all prescribing by Dr. Tolan

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. Mckenzie Marie Tolan takes part in Medicare

Dr. Tolan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)

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. Mckenzie Marie Tolan received $2,087 in industry payments in 2025

CMS Open Payments shows 10 general payments to Dr. Tolan from 2 drug and device companies in 2025. Travel and lodging make up the largest share, 65% of the total. Inspire Medical Systems, Inc. paid the most, $1,913.

General payments to Dr. Tolan by kind, 2025 to 2025

$2.1Kin total
  • Travel and lodging$1,34765%
  • Food and beverage$74035%

Companies that paid Dr. Tolan the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Tolan

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

Dr. Mckenzie Marie Tolan graduated from University of Minnesota Medical School

Dr. Tolan graduated from University of Minnesota Medical School in 2020.

  1. Medical schoolUniversity of Minnesota Medical School

Source: Dmand AI Professional Profile Data

Sources for Dr. Mckenzie Marie Tolan'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
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 Dr. Mckenzie Marie Tolan

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. Mckenzie Marie Tolan's NPI number?

Dr. Mckenzie Marie Tolan's NPI number is 1750901906. It was assigned on April 17, 2020, and it is active in the NPI Registry.

What kind of doctor is Dr. Mckenzie Marie Tolan?

Dr. Mckenzie Marie Tolan is an otolaryngologist in Walnut Creek, California. The primary specialty in the NPI Registry is Otolaryngology Physician (taxonomy code 207Y00000X).

Where does Dr. Mckenzie Marie Tolan practice?

Dr. Tolan practices at 2637 Shadelands Drive, Walnut Creek, CA 94598. Dr. Tolan's primary practice is BASS Imaging Center - Walnut Creek in Walnut Creek, California. Dmand AI also links Dr. Tolan to 3 hospitals and 1 group practice or clinic.

What is Dr. Mckenzie Marie Tolan's office phone number?

The practice phone on file for Dr. Tolan is (925) 329-3710.

What is Dr. Mckenzie Marie Tolan's medical license number?

Dr. Tolan holds California license 201596.

Which hospitals is Dr. Mckenzie Marie Tolan affiliated with?

Dr. Tolan is affiliated with Providence Santa Rosa Memorial Hospital. Dmand AI links Dr. Tolan to 3 more hospitals.

What medical group is Dr. Mckenzie Marie Tolan part of?

Dr. Tolan is linked to BASS Medical Group.

Does Dr. Mckenzie Marie Tolan accept Medicare?

Yes. CMS lists Dr. Tolan as accepting Medicare assignment.

Where did Dr. Mckenzie Marie Tolan go to medical school?

Dr. Tolan graduated from University of Minnesota Medical School in 2020.

What drugs does Dr. Mckenzie Marie Tolan prescribe most?

In 2024 Medicare Part D data, Dr. Tolan's most prescribed drugs by claims were Oxycodone HCl.

Has Dr. Mckenzie Marie Tolan received payments from drug or device companies?

CMS Open Payments shows $2,087 in general payments to Dr. Tolan from 2 companies from 2025 to 2025. The largest total came from Inspire Medical Systems, Inc.

How long has Dr. Mckenzie Marie Tolan been practicing?

Dr. Tolan graduated from medical school in 2020, 6 years ago.

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