Ethan Hersko, PA-C

  • Columbia, MD
  • Physician assistant
NPI1861818627PAC ID0749581155
Medicare patients, 2024
67
Part D claims, 2024
65
MIPS score, 2024
82
Hospital affiliations
1
Medical groups
4
Practice address
5755 Cedar Lane, Columbia, MD 21044
Practice phone
Call (410) 740-7890
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Johns Hopkins Howard County Medical Center

Hospital · Columbia, Maryland

See all 6 affiliations

Find Ethan Hersko's 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.

View contacts for free

Ethan Hersko is a physician assistant in Columbia, Maryland

Ethan Hersko practices at Johns Hopkins Howard County Medical Center in Columbia, Maryland, part of Johns Hopkins Health System.

Ethan Hersko's NPI, 1861818627, was assigned on March 17, 2014.

NPI and contact details
Medicare PAC ID
0749581155
NPI enumeration date
March 17, 2014
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(410) 740-7890
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
38
Medical school graduation
2014

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

Ethan Hersko practices at Johns Hopkins Howard County Medical Center in Columbia, Maryland

Ethan Hersko's primary practice is Johns Hopkins Howard County Medical Center, at 5755 Cedar Lane, Columbia, MD 21044 in Howard County. The practice phone is (410) 740-7890.

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Ethan Hersko is affiliated with 2 sites of care and 4 medical groups

Ethan Hersko's primary practice is Johns Hopkins Howard County Medical Center in Columbia, Maryland, part of Johns Hopkins Health System. The medical group on file is MedStar Medical Group. Dmand AI also links Ethan Hersko to 3 more medical groups and 1 physician office, each named with a free account.

See all 6 affiliations for Ethan Hersko

Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Ethan Hersko's practice

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

EHR by site
SiteEHR vendor and product
Johns Hopkins Howard County Medical CenterAvailable with a free account
+1 more site and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every hospital where Ethan Hersko practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across Johns Hopkins Health System and 6.2K+ hospitals, with verified contacts in the same login.

Ethan Hersko is one of 2,452 physician assistants in Maryland

Physician assistant is Ethan Hersko's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Ethan Hersko has a license on file in Maryland.

Specialties and state licenses

  • Physician assistant, Marylandtaxonomy 363A00000X

Physician assistants near Ethan Hersko

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

Ethan Hersko treated 67 Medicare patients in 2024, average age 63

CMS counts 67 Medicare patients who saw Ethan Hersko in 2024. The largest group is 65 to 74, with 28 patients. 61% of them have high cholesterol, and 57% have high blood pressure. 37% are also on Medicaid. Their average risk score is 1.10, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Ethan Hersko's median patient age at 37, with 67% women.

Medicare patients, 202467
Average age63
Average risk score1.10
Also on Medicaid37%

Ethan Hersko's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Ethan Hersko's Medicare patients by sex, 2024

  • Women4770%
  • Men2030%

Chronic conditions among Ethan Hersko's Medicare patients, 2024

  1. High cholesterol61%
  2. High blood pressure57%
  3. Arthritis46%
  4. Anxiety33%
  5. Mood disorders33%
  6. Depression25%
  7. Asthma24%
  8. COPD18%

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

Ethan Hersko's patients across all payers

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

Patient panel by age, all payers

Median age 37

Patient panel by sex, all payers

  • Women67%
  • Men28%

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

Ethan Hersko wrote 65 Medicare Part D claims in 2024

In 2024, Ethan Hersko wrote 65 Medicare Part D claims for 51 patients. 71% of them were for generic drugs.

Part D claims, 202465
Part D patients51

Ethan Hersko's Part D claims by kind of drug, 2024

  • Generic46 claims71%
  • Brand-name and other19 claims29%

Drug classes CMS tracks in Ethan Hersko's Part D claims, 2024

  • Antibiotics32%21 of 65 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

Ethan Hersko scored 82 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Ethan Hersko for performance year 2024, reported as part of a group. Ethan Hersko accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Ethan Hersko as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Ethan Hersko's MIPS scores, performance year 2024

  • 82of 100Final score
  • 67.9of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 69of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

For MedTech and pharma teams

Find physician assistants like Ethan Hersko by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Sources for Ethan Hersko'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Primary practice, affiliations and health systemDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand 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)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (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 Ethan Hersko

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

What is Ethan Hersko's NPI number?

Ethan Hersko's NPI number is 1861818627. It was assigned on March 17, 2014, and it is active in the NPI Registry.

What does Ethan Hersko specialize in?

Ethan Hersko is a physician assistant in Columbia, Maryland. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Ethan Hersko practice?

Ethan Hersko practices at 5755 Cedar Lane, Columbia, MD 21044. Ethan Hersko's primary practice is Johns Hopkins Howard County Medical Center in Columbia, Maryland, part of Johns Hopkins Health System. Dmand AI also links Ethan Hersko to 3 medical groups and 1 physician office.

What is Ethan Hersko's office phone number?

The practice phone on file for Ethan Hersko is (410) 740-7890.

Which hospitals is Ethan Hersko affiliated with?

Ethan Hersko practices at Johns Hopkins Howard County Medical Center in Columbia, Maryland.

What medical group is Ethan Hersko part of?

Ethan Hersko is linked to MedStar Medical Group. Dmand AI links Ethan Hersko to 3 more medical groups.

Does Ethan Hersko accept Medicare?

Yes. CMS lists Ethan Hersko as accepting Medicare assignment.

Does Ethan Hersko offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Ethan Hersko as offering telehealth services.

What is Ethan Hersko's MIPS score?

Ethan Hersko's MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.

How many Medicare patients does Ethan Hersko see?

CMS counts 67 Medicare patients who saw Ethan Hersko in 2024, with an average age of 63.

How long has Ethan Hersko been practicing?

Ethan Hersko graduated from medical school in 2014, 12 years ago.

Selling to physician assistant practices?

See physician assistants in Maryland by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)