Dr. Davis Whitney Clark Jr., DO
- Medicare services, 2024
- 1,222
- Medicare patients, 2024
- 852
- Part D claims, 2024
- 125
- Hospital affiliations
- 1
- Medical groups
- 2
- Practice address
- 701 East Marshall Street, West Chester, PA 19380
- Practice phone
- Call (610) 431-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Clark's professional email, personal email and mobile number
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Dr. Davis Whitney Clark Jr. is an emergency medicine physician in West Chester, Pennsylvania
Dr. Clark practices at Chester County Hospital in West Chester, Pennsylvania, part of University of Pennsylvania.
Dr. Clark's NPI, 1992741318, was assigned on June 22, 2006. Dr. Clark graduated from Philadelphia College of Osteopathic Medicine in 2003. Dr. Clark holds New York license 237051.
- NPI
- 1992741318NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658305594
- NPI enumeration date
- June 22, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (610) 431-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Davis Whitney Clark Jr. practices at Chester County Hospital in West Chester, Pennsylvania
Dr. Clark's primary practice is Chester County Hospital, at 701 East Marshall Street, West Chester, PA 19380 in Chester County. The practice phone is (610) 431-5000.
- Chester County Hospital701 East Marshall Street, West Chester, PA 19380 · Chester CountyPhone(610) 431-5000
Source: Dmand AI Affiliation Data
Dr. Davis Whitney Clark Jr. is affiliated with 1 site of care and 2 medical groups
Dr. Clark's primary practice is Chester County Hospital in West Chester, Pennsylvania, part of University of Pennsylvania. The medical group on file is Chester County Hospital Emergency Medicine. Dmand AI also links Dr. Clark to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Davis Whitney Clark Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Clark practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Chester County Hospital | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Davis Whitney Clark Jr. is one of 2,549 emergency medicine physicians in Pennsylvania
Emergency medicine is Dr. Clark's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Clark is licensed in New York.
Specialties and state licenses
- Emergency medicine, New YorkPrimary
Emergency medicine physicians near Dr. Clark
Counts of emergency medicine physicians 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. Davis Whitney Clark Jr. billed Medicare for 1,222 services in 2024
CMS data shows 1,222 Medicare services from Dr. Clark across 5 procedure codes in 2024, for 852 Medicare patients. Medicare paid $100,415 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Clark's Medicare services by type, 2024
- Office and hospital visits894
- Tests and treatments328
Dr. Clark compared with the Pennsylvania median for emergency medicine physicians, 2024
- Dr. Clark
- Pennsylvania median
- Medicare services
- 1,222vs 2435.0 times
- Medicare patients
- 852vs 2333.7 times
- Part D claims
- 12vs 4070% below
Medians across 2,501 emergency medicine physicians in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Clark's 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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Clark and other emergency medicine physicians in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Davis Whitney Clark Jr. treated 852 Medicare patients in 2024, average age 76
CMS counts 852 Medicare patients who saw Dr. Clark in 2024. The largest group is 75 to 84, with 313 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.77, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Clark's median patient age at 66, with 56% women.
Dr. Clark's Medicare patients by age, 2024
Dr. Clark's Medicare patients by sex, 2024
- Women47956%
- Men37344%
Chronic conditions among Dr. Clark's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Ischemic heart disease46%
- Mood disorders39%
- Anxiety38%
- Depression36%
- Chronic kidney disease33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Clark's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Davis Whitney Clark Jr. wrote 125 Medicare Part D claims in 2024
In 2024, Dr. Clark wrote 125 Medicare Part D claims for 99 patients. 96% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $26 in total drug cost.
Dr. Clark's Part D claims by kind of drug, 2024
- Generic120 claims96%
- Brand-name and other5 claims4%
Dr. Clark'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. Clark's Part D claims, 2024
- Opioids21%26 of 125 claims
- Antibiotics33%41 of 125 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
How Dr. Davis Whitney Clark Jr. takes part in Medicare
Dr. Clark accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of nail tissue: 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. Davis Whitney Clark Jr. graduated from Philadelphia College of Osteopathic Medicine
Dr. Clark graduated from Philadelphia College of Osteopathic Medicine in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Davis Whitney Clark Jr.'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 | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Dr. Davis Whitney Clark Jr.
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What is Dr. Davis Whitney Clark Jr.'s NPI number?
Dr. Davis Whitney Clark Jr.'s NPI number is 1992741318. It was assigned on June 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Davis Whitney Clark Jr.?
Dr. Davis Whitney Clark Jr. is an emergency medicine physician in West Chester, Pennsylvania. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Davis Whitney Clark Jr. practice?
Dr. Clark practices at 701 East Marshall Street, West Chester, PA 19380. Dr. Clark's primary practice is Chester County Hospital in West Chester, Pennsylvania, part of University of Pennsylvania. Dmand AI also links Dr. Clark to 1 medical group.
What is Dr. Davis Whitney Clark Jr.'s office phone number?
The practice phone on file for Dr. Clark is (610) 431-5000.
What is Dr. Davis Whitney Clark Jr.'s medical license number?
Dr. Clark holds New York license 237051.
Which hospitals is Dr. Davis Whitney Clark Jr. affiliated with?
Dr. Clark practices at Chester County Hospital in West Chester, Pennsylvania.
What medical group is Dr. Davis Whitney Clark Jr. part of?
Dr. Clark is linked to Chester County Hospital Emergency Medicine. Dmand AI links Dr. Clark to 1 more medical group.
Does Dr. Davis Whitney Clark Jr. accept Medicare?
Yes. CMS data shows Dr. Clark billed Medicare for 1,222 services in 2024, and Dr. Clark accepts Medicare assignment.
How many Medicare patients does Dr. Davis Whitney Clark Jr. see?
CMS counts 852 Medicare patients who saw Dr. Clark in 2024, with an average age of 76.
What services does Dr. Davis Whitney Clark Jr. bill to Medicare?
In 2024, Dr. Clark's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and heart test or procedure (93042).
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Where did Dr. Davis Whitney Clark Jr. go to medical school?
Dr. Clark graduated from Philadelphia College of Osteopathic Medicine in 2003.
What drugs does Dr. Davis Whitney Clark Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Clark's most prescribed drugs by claims were Oxycodone-Acetaminophen.
How long has Dr. Davis Whitney Clark Jr. been practicing?
Dr. Clark graduated from medical school in 2003, 23 years ago.
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