Zachary Randall Willis
- Medicare services, 2024
- 327
- Medicare patients, 2024
- 324
- Part D claims, 2024
- 296
- MIPS score, 2024
- 99
- Hospital affiliations
- 2
- Practice address
- 500 Upper Chesapeake Drive, Bel Air, MD 21014
- Practice phone
- Call (443) 643-3303
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Zachary Willis' professional email, personal email and mobile number
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Zachary Randall Willis is a physician assistant in Bel Air, Maryland
Zachary Willis practices at University of Maryland Upper Chesapeake Medical Center Bel Air in Bel Air, Maryland, part of University of Maryland Medical System.
Zachary Willis' NPI, 1265041073, was assigned on July 28, 2020. Zachary Willis holds New York license 025386.
- NPI
- 1265041073NPI Registry (opens in a new tab)
- NPI enumeration date
- July 28, 2020
- NPI status
- Active
- Practice phone
- (443) 643-3303
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Zachary Randall Willis practices at University of Maryland Upper Chesapeake Medical Center Bel Air in Bel Air, Maryland
Zachary Willis' primary practice is University of Maryland Upper Chesapeake Medical Center Bel Air, at 500 Upper Chesapeake Drive, Bel Air, MD 21014 in Harford County. The practice phone is (443) 643-3303.
- University of Maryland Upper Chesapeake Medical Center Bel Air500 Upper Chesapeake Drive, Bel Air, MD 21014 · Harford CountyPhone(443) 643-3303
Source: Dmand AI Affiliation Data
Zachary Randall Willis is affiliated with 2 sites of care and 3 medical groups
Zachary Willis' primary practice is University of Maryland Upper Chesapeake Medical Center Bel Air in Bel Air, Maryland, part of University of Maryland Medical System. Zachary Willis is also affiliated with Canton-Potsdam Hospital. The medical group on file is Emergency Medicine Physicians (EMP). Dmand AI also links Zachary Willis to 2 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Zachary Randall Willis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Zachary Willis practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University of Maryland Upper Chesapeake Medical Center Bel Air | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Zachary Randall Willis is one of 2,452 physician assistants in Maryland
Physician assistant is Zachary Willis' primary specialty in the NPI Registry, under taxonomy code 363A00000X. Zachary Willis is licensed in New York.
Specialties and state licenses
- Physician assistant, New YorkPrimary
Clinical focus
Dmand AI lists acute sinusitis, acute skin infection, broken or dislocated ankle/ or foot, joint pain, lower back pain, minor injury to a limb, rash and shingles among the conditions Zachary Willis treats.
Physician assistants near Zachary Willis
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
Zachary Randall Willis billed Medicare for 327 services in 2024
CMS data shows 327 Medicare services from Zachary Willis across 4 procedure codes in 2024, for 324 Medicare patients. Medicare paid $29,574 for them.
Where Zachary Willis' Medicare services took place, 2024
- In an office289%
- In a facility29991%
Zachary Willis compared with the Maryland median for physician assistants, 2024
- Zachary Willis
- Maryland median
- Medicare services
- 327vs 44527% below
- Medicare patients
- 324vs 1552.1 times
- Part D claims
- 176vs 12145% above
Medians across 1,632 physician assistants in Maryland with Dmand AI profiles that report each measure.
Zachary Willis' 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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Zachary Randall Willis treated 324 Medicare patients in 2024, average age 72
CMS counts 324 Medicare patients who saw Zachary Willis in 2024. The largest group is 65 to 74, with 105 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 23% are also on Medicaid. Their average risk score is 1.44, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Zachary Willis' median patient age at 49, with 60% women.
Zachary Willis' Medicare patients by age, 2024
Zachary Willis' Medicare patients by sex, 2024
- Women18256%
- Men14244%
Chronic conditions among Zachary Willis' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis48%
- Anxiety39%
- Mood disorders39%
- Depression35%
- Diabetes34%
- Chronic kidney disease32%
Share of Medicare patients with each condition. A patient can have several.
Zachary Willis' 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
- Women60%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Zachary Randall Willis wrote 296 Medicare Part D claims in 2024
In 2024, Zachary Willis wrote 296 Medicare Part D claims for 208 patients. 96% of them were for generic drugs. CMS names the drug for 176 of them, across 9 drugs with 11 or more claims each, at $811 in total drug cost.
Zachary Willis' Part D claims by kind of drug, 2024
- Generic283 claims96%
- Brand-name13 claims4%
Zachary Willis' 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 Zachary Willis' Part D claims, 2024
- Antibiotics34%102 of 296 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
Zachary Randall Willis scored 99 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 99 out of 100 for Zachary Willis for performance year 2024, reported through an alternative payment model (APM).
Zachary Willis' MIPS scores, performance year 2024
- 99of 100Final score
- 87.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Sources for Zachary Randall Willis's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Zachary Randall Willis
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Zachary Randall Willis' NPI number?
Zachary Randall Willis' NPI number is 1265041073. It was assigned on July 28, 2020, and it is active in the NPI Registry.
What does Zachary Randall Willis specialize in?
Zachary Randall Willis is a physician assistant in Bel Air, Maryland. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Zachary Randall Willis practice?
Zachary Willis practices at 500 Upper Chesapeake Drive, Bel Air, MD 21014. Zachary Willis' primary practice is University of Maryland Upper Chesapeake Medical Center Bel Air in Bel Air, Maryland, part of University of Maryland Medical System. Dmand AI also links Zachary Willis to 2 medical groups.
What is Zachary Randall Willis' office phone number?
The practice phone on file for Zachary Willis is (443) 643-3303.
What is Zachary Randall Willis' medical license number?
Zachary Willis holds New York license 025386.
Which hospitals is Zachary Randall Willis affiliated with?
Zachary Willis practices at University of Maryland Upper Chesapeake Medical Center Bel Air in Bel Air, Maryland. Zachary Willis is also affiliated with Canton-Potsdam Hospital.
What medical group is Zachary Randall Willis part of?
Zachary Willis is linked to Emergency Medicine Physicians (EMP). Dmand AI links Zachary Willis to 2 more medical groups.
Does Zachary Randall Willis accept Medicare?
Yes. CMS data shows Zachary Willis billed Medicare for 327 services in 2024.
What is Zachary Randall Willis' MIPS score?
Zachary Willis' MIPS final score for performance year 2024 is 99 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Zachary Randall Willis see?
CMS counts 324 Medicare patients who saw Zachary Willis in 2024, with an average age of 72.
Show 3 more questionsShow fewer questions
What services does Zachary Randall Willis bill to Medicare?
In 2024, Zachary Willis' most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and office visit, established patient (99213).
What drugs does Zachary Randall Willis prescribe most?
In 2024 Medicare Part D data, Zachary Willis' most prescribed drugs by claims were Prednisone, Cephalexin and Amoxicillin-Clavulanate Potass.
How long has Zachary Randall Willis been practicing?
Zachary Willis graduated from medical school in 2020, 6 years ago.
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