Dr. Clinton C. Holumzer, MD
- Medicare services, 2024
- 1,667
- Medicare patients, 2024
- 457
- Part D claims, 2024
- 18,694
- Hospital affiliations
- 3
- Industry payments
- $419
- Practice address
- 1200 South Cedar Crest Boulevard, Allentown, PA 18103
- Practice phone
- Call (610) 402-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Holumzer'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.
Dr. Clinton C. Holumzer is an internist in Allentown, Pennsylvania
Dr. Holumzer practices at Lehigh Valley Hospital-Cedar Crest in Allentown, Pennsylvania, part of Thomas Jefferson University.
Dr. Holumzer's NPI, 1124078423, was assigned on May 10, 2006. Dr. Holumzer graduated from Temple University School of Medicine in 1998. Dr. Holumzer holds Pennsylvania license MD072002L.
- NPI
- 1124078423NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0941240352
- NPI enumeration date
- May 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (610) 402-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Clinton C. Holumzer practices at Lehigh Valley Hospital-Cedar Crest in Allentown, Pennsylvania
Dr. Holumzer's primary practice is Lehigh Valley Hospital-Cedar Crest, at 1200 South Cedar Crest Boulevard, Allentown, PA 18103 in Lehigh County. The practice phone is (610) 402-8000.
- Lehigh Valley Hospital-Cedar Crest1200 South Cedar Crest Boulevard, Allentown, PA 18103 · Lehigh CountyPhone(610) 402-8000
Source: Dmand AI Affiliation Data
Dr. Clinton C. Holumzer is affiliated with 12 sites of care and 3 medical groups
Dr. Holumzer's primary practice is Lehigh Valley Hospital-Cedar Crest in Allentown, Pennsylvania, part of Thomas Jefferson University. Dr. Holumzer is also affiliated with St. Luke's University Hospital - Bethlehem Campus. The medical group on file is Lehigh Valley Physician Group (LVPG). Dmand AI also links Dr. Holumzer to 1 more hospital, 3 hospices, 2 group practices and clinics, 2 skilled nursing facilities, 2 medical groups, 1 home health agency and 1 therapy and rehab clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Clinton C. Holumzer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Holumzer practices, 12 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lehigh Valley Hospital-Cedar Crest | Available with a free account |
| +11 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Thomas Jefferson University and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Clinton C. Holumzer is one of 5,665 internists in Pennsylvania
Internal medicine is Dr. Holumzer's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Holumzer is licensed in Pennsylvania.
Specialties and state licenses
- Internal medicine, PennsylvaniaPrimary
Internists near Dr. Holumzer
Counts of internists 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. Clinton C. Holumzer billed Medicare for 1,667 services in 2024
CMS data shows 1,667 Medicare services from Dr. Holumzer across 19 procedure codes in 2024, for 457 Medicare patients. Medicare paid $124,446 for them.
Dr. Holumzer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,3312024: 1,09917%
- Other services
- 2023: 2892024: 34118%
- Tests and treatments
- 2023: 1542024: 20533%
- Lab and pathology
- 2023: 172024: 2229%
Where Dr. Holumzer's Medicare services took place, 2024
- In an office1,60896%
- In a facility594%
Dr. Holumzer compared with the Pennsylvania median for internists, 2024
- Dr. Holumzer
- Pennsylvania median
- Medicare services
- 1,667vs 4174.0 times
- Medicare patients
- 457vs 1852.5 times
- Part D claims
- 17,771vs 22479.3 times
Medians across 5,518 internists in Pennsylvania with Dmand AI profiles that report each measure.
Dr. Holumzer'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. Holumzer and other internists in Pennsylvania.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Clinton C. Holumzer treated 457 Medicare patients in 2024, average age 72
CMS counts 457 Medicare patients who saw Dr. Holumzer in 2024. The largest group is 65 to 74, with 168 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 46% are also on Medicaid. Their average risk score is 1.85, 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. Holumzer's median patient age at 66, with 57% women.
Dr. Holumzer's Medicare patients by age, 2024
Dr. Holumzer's Medicare patients by sex, 2024
- Women23852%
- Men21948%
Chronic conditions among Dr. Holumzer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Arthritis50%
- Mood disorders46%
- Anxiety42%
- Depression42%
- Diabetes37%
- Chronic kidney disease33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Holumzer'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
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Clinton C. Holumzer wrote 18,694 Medicare Part D claims in 2024
In 2024, Dr. Holumzer wrote 18,694 Medicare Part D claims for 782 patients. 87% of them were for generic drugs. CMS names the drug for 17,771 of them, across 239 drugs with 11 or more claims each, at $1,170,867 in total drug cost. In 2023, CMS named 17,699 claims across 244 drugs.
Dr. Holumzer's Part D claims by kind of drug, 2024
- Generic16,172 claims87%
- Brand-name2,382 claims13%
- Other140 claims1%
Dr. Holumzer'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. Holumzer's Part D claims, 2024
- Opioids4%667 of 18,694 claims
- Antibiotics2%374 of 18,694 claims
- Antipsychotics, patients 65 and over1%195 of 18,694 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 17,6992024: 17,771No change
Drugs named by CMS: 239 in 2024, 244 in 2023.
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
Dr. Clinton C. Holumzer offers telehealth to Medicare patients
Dr. Holumzer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Holumzer as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of skin lesions: 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. Clinton C. Holumzer received $419 in industry payments from 2017 to 2023
CMS Open Payments shows 31 general payments to Dr. Holumzer from 9 drug and device companies from 2017 to 2023. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $233.
General payments to Dr. Holumzer by program year, 2017 to 2023
Companies that paid Dr. Holumzer the most, 2017 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Clinton C. Holumzer graduated from Temple University School of Medicine
Dr. Holumzer graduated from Temple University School of Medicine in 1998.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Clinton C. Holumzer'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) |
| Industry payments | Open Payments (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. Clinton C. Holumzer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Clinton C. Holumzer's NPI number?
Dr. Clinton C. Holumzer's NPI number is 1124078423. It was assigned on May 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Clinton C. Holumzer?
Dr. Clinton C. Holumzer is an internist in Allentown, Pennsylvania. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Clinton C. Holumzer practice?
Dr. Holumzer practices at 1200 South Cedar Crest Boulevard, Allentown, PA 18103. Dr. Holumzer's primary practice is Lehigh Valley Hospital-Cedar Crest in Allentown, Pennsylvania, part of Thomas Jefferson University. Dmand AI also links Dr. Holumzer to 1 hospital, 3 hospices, 2 group practices and clinics, 2 skilled nursing facilities, 2 medical groups, 1 home health agency and 1 therapy and rehab clinic.
What is Dr. Clinton C. Holumzer's office phone number?
The practice phone on file for Dr. Holumzer is (610) 402-8000.
What is Dr. Clinton C. Holumzer's medical license number?
Dr. Holumzer holds Pennsylvania license MD072002L.
Which hospitals is Dr. Clinton C. Holumzer affiliated with?
Dr. Holumzer practices at Lehigh Valley Hospital-Cedar Crest in Allentown, Pennsylvania. Dr. Holumzer is also affiliated with St. Luke's University Hospital - Bethlehem Campus. Dmand AI links Dr. Holumzer to 1 more hospital.
What medical group is Dr. Clinton C. Holumzer part of?
Dr. Holumzer is linked to Lehigh Valley Physician Group (LVPG). Dmand AI links Dr. Holumzer to 2 more medical groups.
Does Dr. Clinton C. Holumzer accept Medicare?
Yes. CMS data shows Dr. Holumzer billed Medicare for 1,667 services in 2024, and Dr. Holumzer accepts Medicare assignment.
Does Dr. Clinton C. Holumzer offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Holumzer as offering telehealth services.
How many Medicare patients does Dr. Clinton C. Holumzer see?
CMS counts 457 Medicare patients who saw Dr. Holumzer in 2024, with an average age of 72.
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What services does Dr. Clinton C. Holumzer bill to Medicare?
In 2024, Dr. Holumzer's most billed Medicare services were nursing facility care (99309), nursing facility care (99308) and office visit, established patient (99214).
Where did Dr. Clinton C. Holumzer go to medical school?
Dr. Holumzer graduated from Temple University School of Medicine in 1998.
What drugs does Dr. Clinton C. Holumzer prescribe most?
In 2024 Medicare Part D data, Dr. Holumzer's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Baclofen.
Has Dr. Clinton C. Holumzer received payments from drug or device companies?
CMS Open Payments shows $419 in general payments to Dr. Holumzer from 9 companies from 2017 to 2023. The largest total came from Novo Nordisk Inc.
How long has Dr. Clinton C. Holumzer been practicing?
Dr. Holumzer graduated from medical school in 1998, 28 years ago.
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