Dr. Gerald B. Pees Jr., MD

  • Lawrence, KS
  • Internist
NPI1215934708
Medicare services, 2021
120
Part D claims, 2021
3,058
Affiliated sites
1
Medical group
1
State license
1
Practice address
4525 W 6th St Ste 100 Suite 100, Lawrence, KS 66049-7700
Practice phone
Call (785) 843-5160
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

The Internal Medicine Group

Multi-specialty group site · Lawrence, Kansas

See all 2 affiliations

Find Dr. Pees' 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.

View contacts for free

Dr. Gerald B. Pees Jr. is an internist in Lawrence, Kansas

Dr. Pees practices at The Internal Medicine Group in Lawrence, Kansas.

Dr. Pees' NPI, 1215934708, was assigned on June 30, 2005. Dr. Pees holds Kansas license 0415060.

NPI and contact details
NPI enumeration date
June 30, 2005
NPI status
Active
Practice phone
(785) 843-5160
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Gerald B. Pees Jr. practices at 2 locations in Lawrence, Kansas

Dr. Pees' primary practice is The Internal Medicine Group, at 4525 W 6th St Ste 100 Suite 100, Lawrence, KS 66049-7700. The practice phone is (785) 843-5160. The NPI Registry lists Dr. Pees' practice address as 325 Maine St, Lawrence, KS 66044.

  • The Internal Medicine GroupPrimary
    4525 W 6th St Ste 100 Suite 100, Lawrence, KS 66049-7700Phone(785) 843-5160
  • NPI Registry address
    325 Maine St, Lawrence, KS 66044 · Douglas CountyPhone(785) 843-5160

Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data

Dr. Gerald B. Pees Jr. is affiliated with 1 site of care and 1 medical group

Dr. Pees' primary practice is The Internal Medicine Group in Lawrence, Kansas. Dmand AI also links Dr. Pees to 1 medical group, named with a free account.

The Internal Medicine GroupMulti-specialty group site · Lawrence, KansasPrimary
1 medical groupName with a free account
See all 2 affiliations for Dr. Pees

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dmand AI tracks the EHR system at Dr. Gerald B. Pees Jr.'s practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Pees practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
The Internal Medicine GroupAvailable with a free account
+1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every site where Dr. Pees practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Gerald B. Pees Jr. is one of 866 internists in Kansas

Internal medicine is Dr. Pees' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Pees is licensed in Kansas.

Specialties and state licenses

  • Internal medicine, KansasPrimaryLicense 0415060 · taxonomy 207R00000X

Internists near Dr. Pees

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. Gerald B. Pees Jr. billed Medicare for 120 services in 2021

CMS data shows 120 Medicare services from Dr. Pees across 2 procedure codes in 2021. Medicare paid $1,551 for them. Every service was in an office.

Medicare services, 2021120
Paid by Medicare$1,551
Procedure codes2

Dr. Pees' Medicare services by type, 2020 to 2021

  • 2020
  • 2021
Office and hospital visits
2020: 1,0112021: 7493%
Surgery
2020: 6322021: 4693%
Drugs given in the office
2020: 332021: 0100%
Imaging
2020: 202021: 0100%
Lab and pathology
2020: 122021: 0100%
Tests and treatments
2020: 2892021: 0100%
Other services
2020: 3542021: 0100%

Dr. Pees compared with the Kansas median for internists, 2021

  • Dr. Pees
  • Kansas median
Medicare services
120vs 68182% below
Part D claims
3,058vs 17917.1 times

Medians across 820 internists in Kansas with Dmand AI profiles that report each measure.

Dr. Pees' most billed Medicare procedure codes, 2021

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Pees

Need commercial claims for Dr. Pees?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Pees and other internists in Kansas.

Book a meeting

Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Gerald B. Pees Jr.'s patients have a median age of 64

Across all payers, Dmand AI patient panel data puts Dr. Pees' median patient age at 64, with 37% women.

Dr. Pees' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 64

Patient panel by sex, all payers

  • Women37%
  • Men63%

Source: Dmand AI Patient Panel Data

Dr. Gerald B. Pees Jr. wrote 3,058 Medicare Part D claims in 2021

In 2021, Dr. Pees wrote 3,058 Medicare Part D claims. They cover 65 drugs, with $104,717 in total drug cost. In 2020, CMS named 8,687 claims across 130 drugs.

Part D claims, 20213,058
Drugs named by CMS65
Total drug cost$104,717

Dr. Pees' most prescribed drugs by claims, 2021

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2020 to 2021

  • 2020
  • 2021
Claims for drugs CMS names
2020: 8,6872021: 3,05865%

Drugs named by CMS: 65 in 2021, 130 in 2020.

See all prescribing by Dr. Pees

Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026

For MedTech and pharma teams

Find internists like Dr. Pees by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Sources for Dr. Gerald B. Pees Jr.'s profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Gerald B. Pees Jr.

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. Gerald B. Pees Jr.'s NPI number?

Dr. Gerald B. Pees Jr.'s NPI number is 1215934708. It was assigned on June 30, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Gerald B. Pees Jr.?

Dr. Gerald B. Pees Jr. is an internist in Lawrence, Kansas. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Gerald B. Pees Jr. practice?

Dr. Pees practices at 4525 W 6th St Ste 100 Suite 100, Lawrence, KS 66049-7700. Dr. Pees also practices at 325 Maine St, Lawrence, KS 66044. Dr. Pees' primary practice is The Internal Medicine Group in Lawrence, Kansas. Dmand AI also links Dr. Pees to 1 medical group.

What is Dr. Gerald B. Pees Jr.'s office phone number?

The practice phone on file for Dr. Pees is (785) 843-5160.

What is Dr. Gerald B. Pees Jr.'s medical license number?

Dr. Pees holds Kansas license 0415060.

Does Dr. Gerald B. Pees Jr. accept Medicare?

Yes. CMS data shows Dr. Pees billed Medicare for 120 services in 2021.

What services does Dr. Gerald B. Pees Jr. bill to Medicare?

In 2021, Dr. Pees' most billed Medicare services were office visit, established patient (99213) and surgery: heart and blood vessels (36415).

What drugs does Dr. Gerald B. Pees Jr. prescribe most?

In 2021 Medicare Part D data, Dr. Pees' most prescribed drugs by claims were Lisinopril, Atorvastatin Calcium and Amlodipine Besylate.

How long has Dr. Gerald B. Pees Jr. been practicing?

Dr. Pees' NPI was assigned in 2005.

Selling to internal medicine practices?

See internists in Kansas by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)