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NATHAN RYAN KING MD
NPI 1285096792
Obstetrics & Gynecology in Chicago, IL

Active since March 23, 2016PECOS EnrolledAccepts Medicare Assignment
87.08/100
CMS Quality Rating
1801 W TAYLOR ST # MC650, CHICAGO, IL 60612(312) 413-7500(312) 413-3856 Get Directions Write a Review

NPPES record last updated: June 8, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 8, 2022, Jun 28, 2016, Mar 23, 2016 (3 updates tracked since 2016).

About Nathan Ryan King Md NPPES

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

NATHAN RYAN KING MD (NPI 1285096792) is an individual obstetrics & gynecology provider in Chicago, Illinois, licensed in Illinois (036160222) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS, is affiliated with University Of Illinois Hospital And Clinics, and is a graduate of New York University School Of Medicine (2016).

NPPES Registry Identity

NPI1285096792
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameNATHAN RYAN KINGCredential: MD
Location Address1801 W TAYLOR ST # MC650Chicago, IL 60612-4795
Mailing Address820 S Wood St # Mc808Chicago, IL 60612-4325 · (123) 996-7006
Phone(312) 413-7500
Fax(312) 413-3856
Sole ProprietorYes
Medical School CMSNew York University School Of MedicineGraduated 2016
Enumeration DateMarch 23, 2016
Last NPPES UpdateJune 8, 20223 updates tracked since enumeration
NPPES CertifiedJune 8, 2022
✔ NPI 1285096792 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in IL · 036160222
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.
Also ListedObstetrics & Gynecology · GynecologyTaxonomy 207VG0400X · License 125068647 (IL)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1801 W TAYLOR ST # MC650, Chicago, IL 60612
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Nathan Ryan King Md 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 ID1254623655
PECOS Enrollment IDI20220726000964
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Nathan King reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The Board Of Trustees Of The University Of Illinois
0.1 mi
Obstetrics & Gynecology
820 S WOOD ST
Chicago, IL 60612
  • Reassigned Medicare billing, Illinois enrollment
  • 126 clinicians in this Medicare group
NPI 1154541936 (312) 996-7430
University Of Pittsburgh Physicians
379 mi
Neurological Surgery
425 W FIFTH ST, EAST LIVERPOOL CITY HOSPITAL
East Liverpool, OH 43920
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 7,114 clinicians in this Medicare group
NPI 1811945793 (330) 386-3195

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

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

University Of Illinois Hospital And Clinics

Acute Care Hospitals · Chicago, IL
2/5 CMS rating
OwnershipGovernment - State
CMS Certification Number140150
Location1740 West Taylor St Suite 1400Chicago, IL 60612 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60612 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
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

87.08/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality70.79
Promoting Interoperability100
Improvement Activities40
Cost52.82

Other Providers at the Same Location NPPES 7

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

STEPHANIE CHEN M.D.
Obstetrics & Gynecology
1801 W TAYLOR ST # MC650
CHICAGO, IL 60612
Cook County (312) 413-7500
AYESHA HASAN M.D.
Obstetrics & Gynecology (Maternal & Fetal Medicine)
1801 W TAYLOR ST # MC650
CHICAGO, IL 60612
Cook County (312) 413-7500
LOPA K PANDYA M.D.
Obstetrics & Gynecology (Urogynecology and Reconstructive Pelvic Surgery)
1801 W TAYLOR ST # MC650
CHICAGO, IL 60612
Cook County (312) 413-7500
MEREDITH MARIE PAVICIC M.D.
Obstetrics & Gynecology
1801 W TAYLOR ST # MC650
CHICAGO, IL 60612
Cook County (312) 413-7500
STEPHEN R LOCHER M.D.
Obstetrics & Gynecology
1801 W TAYLOR ST # MC650
CHICAGO, IL 60612
Cook County (312) 413-7500
CATHERINE NICOLE WHEATLEY M.D.
Obstetrics & Gynecology
1801 W TAYLOR ST # MC650
CHICAGO, IL 60612
Cook County (312) 413-7500
MRS. LAUREN LAROCCA NP
Nurse Practitioner
1801 W TAYLOR ST # MC650
CHICAGO, IL 60612
Cook County (312) 413-7500

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 Nathan King's NPI number?

The NPI number for Nathan King is 1285096792. It was assigned to this individual provider in the NPPES registry on March 23, 2016.

Where is Nathan King located?

Nathan King practices at 1801 W Taylor St # Mc650, Chicago, IL 60612. The listed phone number is (312) 413-7500.

What is Nathan King's specialty?

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

Is Nathan King enrolled in Medicare?

Yes. Nathan King 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.

Which organizations bill Medicare for Nathan King's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nathan King reassigns Medicare benefits to 2 organizations: The Board Of Trustees Of The University Of Illinois (Chicago, IL) and University Of Pittsburgh Physicians (East Liverpool, OH). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Nathan King's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Nathan King affiliated with any hospitals?

According to CMS data, Nathan King is affiliated with University Of Illinois Hospital And Clinics.

When was this NPI record last updated?

The NPPES record for Nathan King was last updated on June 8, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.