PATRICK CLARKE KELLER MD
NPI 1972181188
Hospitalist in Lake Forest, IL

Q: What is Patrick Keller's NPI number?

The NPI number for Patrick Keller is 1972181188. It was assigned to this individual provider in the NPPES registry on March 30, 2021.

Q: What is Patrick Keller's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Q: When was this NPI record last updated?

The NPPES record for Patrick Keller was last updated on September 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 30, 2021PECOS Enrolled

1000 N WESTMORELAND RD, LAKE FOREST, IL 60045(847) 234-5600(847) 535-7203 Get Directions Write a Review

NPPES record last updated: September 26, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 15, 2025, Jun 16, 2021, Mar 30, 2021 (3 updates tracked since 2021).

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About Patrick Clarke Keller Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

PATRICK CLARKE KELLER MD (NPI 1972181188) is an individual hospitalist provider in Lake Forest, Illinois, licensed in Illinois (036167282) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1972181188

Entity TypeIndividualMale

Primary Taxonomy208M00000X

Provider Legal NamePATRICK CLARKE KELLERCredential: MD

Location Address1000 N WESTMORELAND RDLake Forest, IL 60045-1658

Mailing Address251 E Huron StChicago, IL 60611-3055 · (312) 926-2000

Phone(847) 234-5600

Fax(847) 535-7203

Sole ProprietorNo

Enumeration DateMarch 30, 2021

Last NPPES UpdateSeptember 26, 20253 updates tracked since enumeration

NPPES CertifiedSeptember 26, 2025

✔ NPI 1972181188 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

License✔ Licensed in IL · 036167282

Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Also ListedInternal MedicineTaxonomy 207R00000X · License 125077372 (IL)

1000 N WESTMORELAND RD, Lake Forest, IL 60045

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Patrick Clarke Keller Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

203 services90 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

87 services86 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

69 services40 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

25 services25 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60045 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$137.43 typical visit price

range $59.81 – $181.38

Typical copayment $34.35 (range $14.95 – $45.34)

Most-billed visit code 99204

Established Patient

$105.07 typical visit price

range $19.15 – $147.12

Typical copayment $26.26 (range $4.78 – $36.78)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CONSOLIDATED PATHOLOGY CONSULTANTS SC

Pathology (Anatomic Pathology & Clinical Pathology)