Doctor profile · Federal record

Dr. Caspian Folmsbee, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Chicago, IL

  • NPI 1720306640
  • Accepts Medicare
  • 16 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1653 W Congress Pkwy
Chicago, IL 606123833
(312) 563-2875

Credentials & registration

NPPES · NUCC
NPI registered
May 2010 — 16 yrs on file
Profile last updated
March 27, 2013
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Illinois #125:057563

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1720306640. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
543
Distinct HCPCS
8
Medicare allowed
$54,422
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 274 168 $134
83036 Hemoglobin a1c level 80 57 $10
G0008 Administration of influenza virus vaccine 43 41 $32
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 42 42 $137
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 33 31 $75
99213 Established patient office or other outpatient visit, 20-29 minutes 33 31 $96
99204 New patient office or other outpatient visit, 45-59 minutes 19 19 $176
G0179 Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a 19 14 $44

In context: peer comparison

Among 487 peers in Chicago Internal Medicine Physician, average services per provider: 168. This provider delivers 3.2× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,466
Patients
488
Total drug cost
$84,922
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 291 104 $5,055
Amlodipine Besylate Generic 173 61 $1,668
Lisinopril Generic 136 44 $1,363
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 113 19 $2,535
Metformin Hcl Generic 87 28 $977
Hydrochlorothiazide Generic 80 29 $496
Nifedipine ER (Nifedipine) Brand 80 27 $4,953
Carvedilol Generic 79 27 $1,456
Losartan Potassium Generic 79 30 $941
Levothyroxine Sodium Generic 71 21 $1,553

Frequently asked questions

Auto-generated from federal data
What is Dr. Caspian Folmsbee's medical specialty?
Dr. Caspian Folmsbee practices Internal Medicine Physician in Chicago, IL.
Where does Dr. Caspian Folmsbee practice?
Dr. Caspian Folmsbee practices at 1653 W Congress Pkwy, Chicago, IL 606123833. Office phone: 3125632875.
What is Dr. Caspian Folmsbee's NPI?
Dr. Caspian Folmsbee's National Provider Identifier (NPI) is 1720306640, issued by NPPES.
Does Dr. Caspian Folmsbee accept Medicare assignment?
Yes. Dr. Caspian Folmsbee accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Caspian Folmsbee commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Hemoglobin a1c level (HCPCS 83036); Administration of influenza virus vaccine (HCPCS G0008). Source: CMS Medicare Physician & Other Practitioners file.