Jonathan Parker

  • Frederick, MD
  • Physician assistant
NPI1013406966
Medicare patients, 2026
197
Part D claims, 2026
144
Medical groups
2
State license
1
Year NPI issued
2018
Practice address
501 W 7th St, Frederick, MD 21701
Practice phone
Call (301) 698-8374
Professional email
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Personal email
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Mobile number
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Social profiles

Medical group

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Jonathan Parker is a physician assistant in Frederick, Maryland

Jonathan Parker practices with Emergency Medicine Physicians (EMP), a medical group.

Jonathan Parker's NPI, 1013406966, was assigned on May 7, 2018.

NPI and contact details
NPI enumeration date
May 7, 2018
NPI status
Active
Practice phone
(301) 698-8374
Professional email
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Personal email
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Mobile number
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Sex
Male

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

Jonathan Parker's practice address is in Frederick, Maryland

Jonathan Parker's practice address in the NPI Registry is 501 W 7th St, Frederick, MD 21701. The practice phone is (301) 698-8374.

  • NPI Registry address
    501 W 7th St, Frederick, MD 21701Phone(301) 698-8374

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

Jonathan Parker is affiliated with 2 medical groups

Jonathan Parker is part of Emergency Medicine Physicians (EMP), a medical group in Canton, Ohio. The medical group on file is Aligned Providers Wyoming.

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Jonathan Parker's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Jonathan Parker practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Emergency Medicine Physicians (EMP)Available with a free account

Source: Dmand AI Technology Install Data

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Jonathan Parker is one of 2,452 physician assistants in Maryland

Physician assistant is Jonathan Parker's primary specialty in the NPI Registry, under taxonomy code 363A00000X.

Specialties and state licenses

  • Physician assistantPrimarytaxonomy 363A00000X

Physician assistants near Jonathan Parker

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

Jonathan Parker treated 197 Medicare patients in 2026, average age 73

CMS counts 197 Medicare patients who saw Jonathan Parker in 2026. The largest group is 75 to 84, with 67 patients. 72% of them have high blood pressure, and 64% have high cholesterol. 30% are also on Medicaid. Their average risk score is 1.66, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Medicare patients, 2026197
Average age73
Average risk score1.66
Also on Medicaid30%

Jonathan Parker's Medicare patients by age, 2026

Jonathan Parker's Medicare patients by sex, 2026

  • Women12664%
  • Men7136%

Chronic conditions among Jonathan Parker's Medicare patients, 2026

  1. High blood pressure72%
  2. High cholesterol64%
  3. Arthritis50%
  4. Mood disorders47%
  5. Depression44%
  6. Anxiety40%
  7. Diabetes34%
  8. COPD31%

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

Source: Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data

Jonathan Parker wrote 144 Medicare Part D claims in 2026

In 2026, Jonathan Parker wrote 144 Medicare Part D claims for 82 patients. 92% of them were for generic drugs.

Part D claims, 2026144
Part D patients82

Jonathan Parker's Part D claims by kind of drug, 2026

  • Generic133 claims92%
  • Brand-name and other11 claims8%

Drug classes CMS tracks in Jonathan Parker's Part D claims, 2026

  • Opioids17%24 of 144 claims
  • Antibiotics22%31 of 144 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), 2026 data

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Sources for Jonathan Parker'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 systemDmand AI Affiliation Data
Medicare patients and the all-payer patient panelMedicare 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)
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 Jonathan Parker

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

What is Jonathan Parker's NPI number?

Jonathan Parker's NPI number is 1013406966. It was assigned on May 7, 2018, and it is active in the NPI Registry.

What does Jonathan Parker specialize in?

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

Where does Jonathan Parker practice?

Jonathan Parker practices at 501 W 7th St, Frederick, MD 21701. Jonathan Parker's primary practice is Emergency Medicine Physicians (EMP), a medical group.

What is Jonathan Parker's office phone number?

The practice phone on file for Jonathan Parker is (301) 698-8374. Dmand AI also checks direct phone and mobile numbers, available with a free account.

What is Jonathan Parker's email address?

Dmand AI checks professional and personal email addresses for Jonathan Parker through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.

What medical group is Jonathan Parker part of?

Jonathan Parker is part of Emergency Medicine Physicians (EMP) in Canton, Ohio. Jonathan Parker is also linked to Aligned Providers Wyoming. Dmand AI links Jonathan Parker to 2 medical groups in all.

Who does Jonathan Parker practice with?

Dmand AI links 1,748 HCPs to Jonathan Parker's primary medical group, 331 of them physician assistants. A free account lists them, with verified contacts.

How many Medicare patients does Jonathan Parker see?

CMS counts 197 Medicare patients who saw Jonathan Parker in 2026, with an average age of 73.

How long has Jonathan Parker been practicing?

Jonathan Parker's NPI was assigned in 2018.

What EHR does Jonathan Parker's practice use?

Dmand AI tracks the EHR system at Emergency Medicine Physicians (EMP). The vendor and product are available with a free Dmand AI account.

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