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CASEY C YOUNKIN M.D.
NPI 1659352656
Obstetrics & Gynecology in Springfield, IL

Active since November 08, 2005PECOS EnrolledAccepts Medicare Assignment
415 N 9TH ST, 6TH FLOOR, SPRINGFIELD, IL 62702(217) 545-5117(217) 545-4912 Get Directions Write a Review

NPPES record last updated: November 20, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 20, 2025, Dec 4, 2020 (2 updates tracked since 2020).

About Casey C Younkin M.d. NPPES

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

CASEY C YOUNKIN M.D. (NPI 1659352656) is an individual obstetrics & gynecology provider in Springfield, Illinois, licensed in Illinois (036077173) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with St Johns Hospital, and maintains a secondary practice location in Springfield.

NPPES Registry Identity

NPI1659352656
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameCASEY C YOUNKINCredential: M.D.
Location Address415 N 9TH ST, 6TH FLOORSpringfield, IL 62702-5317
Mailing AddressPo Box 19639Springfield, IL 62794-9639 · (217) 545-8000 · Fax (844) 470-2486
Phone(217) 545-5117
Fax(217) 545-4912
Sole ProprietorNo
Medical School CMSWashington University School Of MedicineGraduated 1983
Enumeration DateNovember 8, 2005
Last NPPES UpdateNovember 20, 20252 updates tracked since enumeration
NPPES CertifiedNovember 20, 2025
✔ NPI 1659352656 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in IL · 036077173
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
415 N 9TH ST, Springfield, IL 62702
Open in Google Maps ↗

Secondary Practice Location 1

Location 1421 N 9th St Bldg QSpringfield, IL 62702-5317 · Phone (217) 545-8000

Other Identifiers 1

Medicaid036077173IL

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Casey C Younkin M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2961544382
PECOS Enrollment IDI20100123000163
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 7

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.

Injection, denosumab, 1 mg J0897
Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.
1,624 services21 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
101 services99 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
44 services36 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
33 services22 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
20 services20 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
11 services11 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Johns Hospital

Acute Care Hospitals · Springfield, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140053
Location800 E Carpenter StSpringfield, IL 62769 · Sangamon County
Emergency services Birthing friendly

Memorial Medical Center

Acute Care Hospitals · Springfield, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140148
Location701 N First StSpringfield, IL 62702 · Sangamon County
Emergency services Birthing friendly

Carlinville Area Hospital

Critical Access Hospitals · Carlinville, IL
OwnershipVoluntary non-profit - Private
CMS Certification Number141347
Location20733 N Broad StreetCarlinville, IL 62626 · Macoupin County
Emergency services

St Francis Hospital

Critical Access Hospitals · Litchfield, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number141350
Location1215 Franciscan DrLitchfield, IL 62056 · Montgomery County
Emergency services Birthing friendly

Jacksonville Memorial Hospital

Critical Access Hospitals · Jacksonville, IL
OwnershipVoluntary non-profit - Private
CMS Certification Number141352
Location1600 W Walnut StJacksonville, IL 62650 · Morgan County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 62702 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
$127.46 typical visit price
range $54.80 – $168.44
Typical copayment $31.86 (range $13.70 – $42.11)
Most-billed visit code 99204
Established Patient
$68.64 typical visit price
range $17.16 – $136.56
Typical copayment $17.16 (range $4.29 – $34.14)
Most-billed visit code 99213
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.

ROBERT MARC ABRAMS M.D.
Obstetrics & Gynecology (Maternal & Fetal Medicine)
415 N 9TH ST, 6W100
SPRINGFIELD, IL 62702
Sangamon County (217) 545-5117
DR. SARA BETH RUBENACKER M.D.
Obstetrics & Gynecology
415 N 9TH ST
SPRINGFIELD, IL 62702
Sangamon County (217) 545-5117
JUSTINE HOLLE MORGAN CFNP
Clinical Nurse Specialist (Oncology, Pediatrics)
415 N 9TH ST, SUITE 2W106
SPRINGFIELD, IL 62702
Sangamon County (217) 545-7377
DR. KIMBERLY NICHOLE POWELL MD
Pediatrics (Pediatric Critical Care Medicine)
415 N 9TH ST, SUITE 4W16
SPRINGFIELD, IL 62702
Sangamon County (217) 545-8000
DR. ELIZABETH RAMSEY UNAL MD
Obstetrics & Gynecology (Maternal & Fetal Medicine)
415 N 9TH ST, STE 6W100
SPRINGFIELD, IL 62702
Sangamon County (217) 545-5117
LORIE SPORRER FNP-BC
Nurse Practitioner (Family)
415 N 9TH ST, SUITE 6W100
SPRINGFIELD, IL 62702
Sangamon County (217) 545-8000
DR. HAYLEE ELIZABETH ELVENDAHL-RUMLEY DO
Obstetrics & Gynecology
415 N 9TH ST
SPRINGFIELD, IL 62702
Sangamon County (217) 545-8000
DR. KRISTEN LEADBETTER M.D.
Pediatrics (Neonatal-Perinatal Medicine)
415 N 9TH ST, STE 4W16
SPRINGFIELD, IL 62702
Sangamon County (217) 545-8000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Casey Younkin's NPI number?

The NPI number for Casey Younkin is 1659352656. It was assigned to this individual provider in the NPPES registry on November 8, 2005.

Where is Casey Younkin located?

Casey Younkin practices at 415 N 9th St 6th Floor, Springfield, IL 62702. The listed phone number is (217) 545-5117.

What is Casey Younkin's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Casey Younkin enrolled in Medicare?

Yes. Casey Younkin is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Casey Younkin affiliated with any hospitals?

According to CMS data, Casey Younkin is affiliated with St Johns Hospital, Memorial Medical Center, Carlinville Area Hospital, St Francis Hospital and Jacksonville Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Casey Younkin was last updated on November 20, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.