Roger G. Peck, MD
Internal Medicine Physician · Manhattan, KS
Roger G. Peck, MD is an internal medicine physician with a practice address in Manhattan, Kansas, and NPI 1972570331, issued on Mar 3, 2006. Check the license (Kansas 04-20773, as entered in NPPES) on the Kansas State Board of Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Roger G. Peck
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 04-20773 KS
Self-reported in NPPES; status is on the state search - Practice location
- 1325 Research Park Dr, Manhattan, KS 66502
- Phone
- (785) 537-2651
- Enumerated
- Mar 3, 2006
- Record last updated
- Dec 31, 2025
- Fax
- (785) 270-4347
- Medicaid ID
- 100175640D KS
- Medicare enrollment
- Enrolled (PECOS I20050523001129); accepts Medicare assignment
- Medical or professional school
- University Of Kansas School Of Med (Kc/Wich/Sal), 1981
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,010 in Kansas → Look up another NPI →
Also registered at 1325 Research Park Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michelle Boggs, APRNPsychiatric/Mental Health Nurse Practitioner1750835070
- Holly Brannen, APRN-CNurse Practitioner1285034348
- Kaitlynn Christiansen, MDFamily Medicine Physician1558862490
- Scott Coonrod, MDInternal Medicine Physician1952379869
- Samantha Davis, DNPFamily Medicine Physician1548911605
- Brett Dawes, APRNNurse Practitioner1366972390
Verify Roger G. Peck in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKansas State Board of Healing Arts
Search for license 04-20773Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% more Medicare Part D claims than the average internal medicine physician in 2024
5,158 Medicare Part D claims for 332 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 153 claims were for opioids.
Most prescribed
- Atorvastatin Calcium249 claims
- Levothyroxine Sodium189 claims
- Rosuvastatin Calcium161 claims
- Amlodipine Besylate160 claims
- Losartan Potassium142 claims
- Omeprazole123 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.
Bills Medicare through one group practice
- Cotton-O'Neil Clinic Revocable TrustManhattan, KS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Roger G. Peck among 1,010 internal medicine physician records in Kansas
Roger G. Peck, MD is one of 1,010 internal medicine physician records with a practice address in Kansas. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 63% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated1981 · median 2008 among the 568 with a school on file
- Record last updated2025 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Kansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in Kansas
There are 1,010 internal medicine physician records in Kansas.
All 1,010 in Kansas → Every provider in Manhattan → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Segen Elizabeth Chase, M.D.Manhattan, KS 665021801011184
- Scott Coonrod, MDManhattan, KS 665021952379869
- Kenna Fischman, MDManhattan, KS 665021578914966
- Matthew Floersch, M.D.Manhattan, KS 665021114993698
- James Gardner, MDManhattan, KS 665021497718092
- Sandra Killingsworth, MDManhattan, KS 665021659348027
- Palmer Meek, MDManhattan, KS 665021457328445
- Casey Poell, M.D.Manhattan, KS 665021336184662
Common questions
What is Roger G. Peck, MD's NPI number?
Roger G. Peck, MD's National Provider Identifier (NPI) is 1972570331, issued on Mar 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Roger G. Peck, MD located?
The NPPES record lists a practice address at 1325 Research Park Dr, Manhattan, KS, 66502. Phone: (785) 537-2651. Providers update this record themselves, so call before visiting.
How can I verify Roger G. Peck, MD's license?
NPPES lists Kansas license number 04-20773, as entered by the provider. Search the Kansas State Board of Healing Arts at https://www.ksbha.ks.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Roger G. Peck, MD prescribe under Medicare Part D?
In 2024, Roger G. Peck, MD had 5,158 Medicare Part D claims for 332 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.