Dr. Philip N. Adjei, MD

  • Libertyville, IL
  • Gastroenterologist
NPI1720080054PAC ID4587645965
Medicare services, 2024
1,077
Medicare patients, 2024
569
Part D claims, 2024
1,606
Hospital affiliations
4
Industry payments
$25,871
Practice address
1880 W Winchester Rd, Libertyville, IL 60048
Practice phone
Call (847) 968-2401
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Winchester Aesthetic Surgical Suite, SC

Libertyville, Illinois

See all 8 affiliations

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Dr. Philip N. Adjei is a gastroenterologist in Libertyville, Illinois

Dr. Adjei practices at Winchester Aesthetic Surgical Suite, SC in Libertyville, Illinois.

Dr. Adjei's NPI, 1720080054, was assigned on May 31, 2005. Dr. Adjei graduated from University of Ghana Medical School in 1987. Dr. Adjei holds Illinois license 036097954.

NPI and contact details
Medicare PAC ID
4587645965
NPI enumeration date
May 31, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(847) 968-2401
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
65
Medical school graduation
1987

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

Dr. Philip N. Adjei practices at Winchester Aesthetic Surgical Suite, SC in Libertyville, Illinois

Dr. Adjei's primary practice is Winchester Aesthetic Surgical Suite, SC, at 1880 W Winchester Rd, Libertyville, IL 60048 in Lake County. The practice phone is (847) 968-2401.

  • Winchester Aesthetic Surgical Suite, SC
    1880 W Winchester Rd, Libertyville, IL 60048 · Lake CountyPhone(847) 968-2401

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Philip N. Adjei is affiliated with 6 sites of care and 2 medical groups

Dr. Adjei's primary practice is Winchester Aesthetic Surgical Suite, SC in Libertyville, Illinois. Dr. Adjei is also affiliated with Advocate Condell Medical Center. The medical group on file is GI Partners of Illinois. Dmand AI also links Dr. Adjei to 3 more hospitals, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 8 affiliations for Dr. Adjei

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Philip N. Adjei's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Adjei practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Winchester Aesthetic Surgical Suite, SCAvailable with a free account
+5 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Philip N. Adjei is one of 771 gastroenterologists in Illinois

Gastroenterology is Dr. Adjei's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Adjei is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Adjei's licenses on file in 3 states: Illinois, Minnesota and Maryland.

Specialties and state licenses

  • Gastroenterology, IllinoisPrimaryLicense 036097954 · 1998 to 2026 · taxonomy 207RG0100X
  • Minnesota license1994 to 2022
  • Maryland license1993 to 1994

Clinical focus

Dmand AI lists acid reflux, acute gastroduodenitis, chronic indigestion, chronic inflammatory bowel disease (IBD), cirrhosis of the liver, gastroenteritis, gastrointestinal bleeding and intestinal diverticulosis among the conditions Dr. Adjei treats.

Gastroenterologists near Dr. Adjei

Counts of gastroenterologists 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. Philip N. Adjei billed Medicare for 1,077 services in 2024

CMS data shows 1,077 Medicare services from Dr. Adjei across 7 procedure codes in 2024, for 569 Medicare patients. Medicare paid $178,141 for them. Every service was in an office.

Medicare services, 20241,077
Medicare patients569
Paid by Medicare$178,141
Procedure codes7

Dr. Adjei's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 6072024: 71317%
Surgery
2023: 4072024: 33518%
Other services
2023: 322024: 299%

Dr. Adjei compared with the Illinois median for gastroenterologists, 2024

  • Dr. Adjei
  • Illinois median
Medicare services
1,077vs 4982.2 times
Medicare patients
569vs 30785% above
Part D claims
1,384vs 3703.7 times

Medians across 757 gastroenterologists in Illinois with Dmand AI profiles that report each measure.

Dr. Adjei'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.

See all procedures by Dr. Adjei

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

Dr. Philip N. Adjei treated 569 Medicare patients in 2024, average age 73

CMS counts 569 Medicare patients who saw Dr. Adjei in 2024. The largest group is 65 to 74, with 288 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 9% are also on Medicaid. Their average risk score is 1.14, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Adjei's median patient age at 63, with 51% women.

Medicare patients, 2024569
Average age73
Average risk score1.14
Also on Medicaid9%

Dr. Adjei's Medicare patients by age, 2024

Dr. Adjei's Medicare patients by sex, 2024

  • Women32457%
  • Men24543%

Chronic conditions among Dr. Adjei's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure73%
  3. Arthritis49%
  4. Diabetes30%
  5. Ischemic heart disease25%
  6. Mood disorders25%
  7. Anxiety24%
  8. Depression23%

Share of Medicare patients with each condition. A patient can have several.

Dr. Adjei's patients across all payers

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

Patient panel by age, all payers

Median age 63

Patient panel by sex, all payers

  • Women51%
  • Men49%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Philip N. Adjei wrote 1,606 Medicare Part D claims in 2024

In 2024, Dr. Adjei wrote 1,606 Medicare Part D claims for 408 patients. 85% of them were for generic drugs. CMS names the drug for 1,384 of them, across 28 drugs with 11 or more claims each, at $499,471 in total drug cost. In 2023, CMS named 1,156 claims across 27 drugs.

Part D claims, 20241,606
Drugs named by CMS28
Total drug cost$499,471
Part D patients408

Dr. Adjei's Part D claims by kind of drug, 2024

  • Generic1,362 claims85%
  • Brand-name244 claims15%

Dr. Adjei'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. Adjei's Part D claims, 2024

  • Opioids1%16 of 1,606 claims
  • Antibiotics5%75 of 1,606 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: 1,1562024: 1,38420%

Drugs named by CMS: 28 in 2024, 27 in 2023.

See all prescribing by Dr. Adjei

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. Philip N. Adjei ranks in the 86th percentile for colonoscopy in Medicare

Dr. Adjei accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 133 procedures of colonoscopy by Dr. Adjei, more than 86% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Adjei ranks in Medicare procedure volume

Upper gastrointestinal (GI) endoscopy for acid reflux
84th percentile141 procedures
Colonoscopy
86th percentile133 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Philip N. Adjei received $25,871 in industry payments from 2016 to 2025

CMS Open Payments shows 1,392 general payments to Dr. Adjei from 57 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Janssen Pharmaceuticals, Inc paid the most, $3,833.

General payments to Dr. Adjei by program year, 2016 to 2025

General payments to Dr. Adjei by kind, 2016 to 2025

$25.9Kin total
  • Food and beverage$25,55899%
  • Education$3131%

Companies that paid Dr. Adjei the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Adjei

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Philip N. Adjei graduated from University of Ghana Medical School

Dr. Adjei graduated from University of Ghana Medical School in 1987.

  1. Medical schoolUniversity of Ghana Medical School
  2. Board certified in gastroenterologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Philip N. Adjei accepts plans from 18 insurance carriers

Dr. Adjei is in network with 18 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Cigna. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.

Plan types Dr. Adjei accepts, by number of carriers

  1. PPO12
  2. HMO9
  3. Medicare9
  4. POS6
  5. EPO4
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Philip N. Adjei'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 Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
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. Philip N. Adjei

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. Philip N. Adjei's NPI number?

Dr. Philip N. Adjei's NPI number is 1720080054. It was assigned on May 31, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Philip N. Adjei?

Dr. Philip N. Adjei is a gastroenterologist in Libertyville, Illinois. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Philip N. Adjei practice?

Dr. Adjei practices at 1880 W Winchester Rd, Libertyville, IL 60048. Dr. Adjei's primary practice is Winchester Aesthetic Surgical Suite, SC in Libertyville, Illinois. Dmand AI also links Dr. Adjei to 3 hospitals, 1 group practice or clinic and 1 medical group.

What is Dr. Philip N. Adjei's office phone number?

The practice phone on file for Dr. Adjei is (847) 968-2401.

What is Dr. Philip N. Adjei's medical license number?

Dr. Adjei holds Illinois license 036097954, one of the licenses on file in 3 states.

Which states has Dr. Philip N. Adjei been licensed in?

Dmand AI has state licenses on file for Dr. Adjei in Illinois (1998 to 2026), Minnesota (1994 to 2022) and Maryland (1993 to 1994).

Which hospitals is Dr. Philip N. Adjei affiliated with?

Dr. Adjei is affiliated with Advocate Condell Medical Center. Dmand AI links Dr. Adjei to 3 more hospitals.

What medical group is Dr. Philip N. Adjei part of?

Dr. Adjei is linked to GI Partners of Illinois. Dmand AI links Dr. Adjei to 1 more medical group.

Does Dr. Philip N. Adjei accept Medicare?

Yes. CMS data shows Dr. Adjei billed Medicare for 1,077 services in 2024, and Dr. Adjei accepts Medicare assignment.

How many Medicare patients does Dr. Philip N. Adjei see?

CMS counts 569 Medicare patients who saw Dr. Adjei in 2024, with an average age of 73.

Show 7 more questionsShow fewer questions

Is Dr. Philip N. Adjei board certified?

Yes. Dr. Adjei is board certified in gastroenterology by the American Board of Internal Medicine.

What services does Dr. Philip N. Adjei bill to Medicare?

In 2024, Dr. Adjei's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99204) and surgery: digestive system (43239).

Where did Dr. Philip N. Adjei go to medical school?

Dr. Adjei graduated from University of Ghana Medical School in 1987.

What drugs does Dr. Philip N. Adjei prescribe most?

In 2024 Medicare Part D data, Dr. Adjei's most prescribed drugs by claims were Pantoprazole Sodium, Omeprazole and Sucralfate.

Has Dr. Philip N. Adjei received payments from drug or device companies?

CMS Open Payments shows $25,871 in general payments to Dr. Adjei from 57 companies from 2016 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.

How long has Dr. Philip N. Adjei been practicing?

Dr. Adjei graduated from medical school in 1987, 39 years ago.

What insurance does Dr. Philip N. Adjei accept?

Dr. Adjei is in network with 18 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Cigna. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.

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