Haley Mesol, PA-C

  • Frederick, MD
  • Physician assistant
NPI1295408987
Medicare patients, 2024
223
Part D claims, 2024
231
Hospital affiliations
1
Industry payments
$14
Medical groups
3
Practice address
400 West Seventh St, Frederick, MD 21701
Practice phone
Call (240) 566-3300
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Frederick Health Hospital

Hospital · Frederick, Maryland

See all 5 affiliations

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Haley Mesol is a physician assistant in Frederick, Maryland

Haley Mesol practices at Frederick Health Hospital in Frederick, Maryland, part of Frederick Health.

Haley Mesol's NPI, 1295408987, was assigned on July 28, 2021. Haley Mesol holds Maryland license C08213.

NPI and contact details
NPI enumeration date
July 28, 2021
NPI status
Active
Practice phone
(240) 566-3300
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
31
Medical school graduation
2021

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

Haley Mesol practices at Frederick Health Hospital in Frederick, Maryland

Haley Mesol's primary practice is Frederick Health Hospital, at 400 West Seventh St, Frederick, MD 21701 in Frederick County. The practice phone is (240) 566-3300.

Source: Dmand AI Affiliation Data

Haley Mesol is affiliated with 2 sites of care and 3 medical groups

Haley Mesol's primary practice is Frederick Health Hospital in Frederick, Maryland, part of Frederick Health. The medical group on file is Emergency Medicine Physicians (EMP). Dmand AI also links Haley Mesol to 2 more medical groups and 1 group practice or clinic, each named with a free account.

See all 5 affiliations for Haley Mesol

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

Dmand AI tracks the EHR system at Haley Mesol's practice

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

EHR by site
SiteEHR vendor and product
Frederick Health HospitalAvailable with a free account
+1 more site and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Haley Mesol is one of 2,452 physician assistants in Maryland

Physician assistant is Haley Mesol's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Dmand AI has Haley Mesol's licenses on file in 2 states: Maryland and Pennsylvania.

Specialties and state licenses

  • Physician assistant, MarylandPrimaryLicense C08213 · taxonomy 363A00000X
  • Pennsylvania licenseLicense MA062660

Physician assistants near Haley Mesol

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

Haley Mesol treated 223 Medicare patients in 2024, average age 74

CMS counts 223 Medicare patients who saw Haley Mesol in 2024. The largest group is 75 to 84, with 78 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 24% are also on Medicaid. Their average risk score is 1.64, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Haley Mesol's median patient age at 49, with 57% women.

Medicare patients, 2024223
Average age74
Average risk score1.64
Also on Medicaid24%

Haley Mesol's Medicare patients by age, 2024

Haley Mesol's Medicare patients by sex, 2024

  • Women13058%
  • Men9342%

Chronic conditions among Haley Mesol's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis59%
  4. Mood disorders51%
  5. Anxiety43%
  6. Diabetes42%
  7. Depression41%
  8. Ischemic heart disease39%

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

Haley Mesol's patients across all payers

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

Patient panel by age, all payers

Median age 49

Patient panel by sex, all payers

  • Women57%
  • Men42%

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

Haley Mesol wrote 231 Medicare Part D claims in 2024

In 2024, Haley Mesol wrote 231 Medicare Part D claims for 163 patients. 98% of them were for generic drugs.

Part D claims, 2024231
Part D patients163

Haley Mesol's Part D claims by kind of drug, 2024

  • Generic226 claims98%
  • Brand-name and other5 claims2%

Drug classes CMS tracks in Haley Mesol's Part D claims, 2024

  • Opioids16%38 of 231 claims
  • Antibiotics35%80 of 231 claims

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

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

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Haley Mesol received $14 in industry payments in 2025

CMS Open Payments shows 1 general payment to Haley Mesol from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $14.

Companies that paid Haley Mesol the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to Haley Mesol

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

Sources for Haley Mesol'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 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)
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 Haley Mesol

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

What is Haley Mesol's NPI number?

Haley Mesol's NPI number is 1295408987. It was assigned on July 28, 2021, and it is active in the NPI Registry.

What does Haley Mesol specialize in?

Haley Mesol is a physician assistant in Frederick, Maryland. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Haley Mesol practice?

Haley Mesol practices at 400 West Seventh St, Frederick, MD 21701. Haley Mesol's primary practice is Frederick Health Hospital in Frederick, Maryland, part of Frederick Health. Dmand AI also links Haley Mesol to 2 medical groups and 1 group practice or clinic.

What is Haley Mesol's office phone number?

The practice phone on file for Haley Mesol is (240) 566-3300.

What is Haley Mesol's medical license number?

Haley Mesol holds Maryland license C08213, one of the licenses on file in 2 states.

Which states has Haley Mesol been licensed in?

Dmand AI has state licenses on file for Haley Mesol in Maryland and Pennsylvania.

Which hospitals is Haley Mesol affiliated with?

Haley Mesol practices at Frederick Health Hospital in Frederick, Maryland.

What medical group is Haley Mesol part of?

Haley Mesol is linked to Emergency Medicine Physicians (EMP). Dmand AI links Haley Mesol to 2 more medical groups.

How many Medicare patients does Haley Mesol see?

CMS counts 223 Medicare patients who saw Haley Mesol in 2024, with an average age of 74.

Has Haley Mesol received payments from drug or device companies?

CMS Open Payments shows $14 in general payments to Haley Mesol from 1 company from 2025 to 2025. The largest total came from Abbvie Inc.

How long has Haley Mesol been practicing?

Haley Mesol graduated from medical school in 2021, 5 years ago.

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