Mark Christian Knouse, MD
Infectious Disease Physician · Allentown, PA
Mark Christian Knouse, MD is an infectious disease physician with a practice address in Allentown, Pennsylvania, and NPI 1144201765, issued on Nov 10, 2005. Check the license (Pennsylvania MD029621E, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Mark Christian Knouse
- Credential
- MD
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- MD029621E PA
Self-reported in NPPES; status is on the state search - Practice location
- 1250 S Cedar Crest Blvd, Allentown, PA 18103
- Phone
- (610) 402-8430
- Enumerated
- Nov 10, 2005
- Record last updated
- Nov 20, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (610) 402-1676
- Medicaid ID
- 1164760 PA
- Medicare enrollment
- Enrolled (PECOS I20061120000610); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 1983
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 545 in Pennsylvania → Look up another NPI →
Also registered at 1250 S Cedar Crest Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark Christian Knouse in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD029621ECheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average infectious disease physician in 2024
246 Medicare Part D claims for 65 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.
Most prescribed
- Biktarvy28 claims
- Descovy22 claims
- Doxycycline Hyclate22 claims
- Genvoya18 claims
- Odefsey15 claims
- Tivicay12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $15.50
1 payment: education; the largest payer was Insmed, Inc. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Lehigh Valley Physician GroupAllentown, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Christian Knouse among 545 infectious disease physician records in Pennsylvania
Mark Christian Knouse, MD is one of 545 infectious disease physician records with a practice address in Pennsylvania. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1983 · median 2005 among the 381 with a school on file
- Record last updated2015 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in Pennsylvania
There are 545 infectious disease physician records in Pennsylvania.
All 545 in Pennsylvania → Every provider in Allentown → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Shabnam Assar, M.D.Allentown, PA 181031962744664
- Alex Benjamin, M.D.Allentown, PA 181031538329792
- Aylin Colpan, MDAllentown, PA 181031144480393
- Brian Friel, D.O.Allentown, PA 181031821358805
- Christopher Miller, M.D.Allentown, PA 181031518100486
- Jaan Naktin, MDAllentown, PA 181031639150253
- Luther Rhodes, MDAllentown, PA 181031174504633
- Carla Rossi, MDAllentown, PA 181031548260631
Common questions
What is Mark Christian Knouse, MD's NPI number?
Mark Christian Knouse, MD's National Provider Identifier (NPI) is 1144201765, issued on Nov 10, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark Christian Knouse, MD located?
The NPPES record lists a practice address at 1250 S Cedar Crest Blvd, Allentown, PA, 18103. Phone: (610) 402-8430. Providers update this record themselves, so call before visiting.
How can I verify Mark Christian Knouse, MD's license?
NPPES lists Pennsylvania license number MD029621E, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Christian Knouse, MD prescribe under Medicare Part D?
In 2024, Mark Christian Knouse, MD had 246 Medicare Part D claims for 65 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.