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CHARLES STANTON HUMMEL MD, PHD
NPI 1851737043
Obstetrics & Gynecology in Seattle, WA

Active since May 15, 2013PECOS EnrolledAccepts Medicare Assignment
1101 MADISON ST STE 700, SEATTLE, WA 98104(206) 215-6300(206) 215-6301 Get Directions Write a Review

NPPES record last updated: February 24, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Charles Stanton Hummel Md, Phd NPPES

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

CHARLES STANTON HUMMEL MD, PHD (NPI 1851737043) is an individual obstetrics & gynecology provider in Seattle, Washington, licensed in Washington (MD61653873) and active in the NPI registry since May 2013. He is enrolled in Medicare PECOS and is a graduate of Other (2013).

NPPES Registry Identity

NPI1851737043
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameCHARLES STANTON HUMMELCredential: MD, PHD
Location Address1101 MADISON ST STE 700Seattle, WA 98104-3599
Mailing AddressPo Box 25608Salt Lake City, UT 84125-0608 · (206) 320-4476
Phone(206) 215-6300
Fax(206) 215-6301
Sole ProprietorNo
Medical School CMSOtherGraduated 2013
Enumeration DateMay 15, 2013
Last NPPES UpdateFebruary 24, 2026
NPPES CertifiedFebruary 24, 2026
✔ NPI 1851737043 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in WA · MD61653873
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.
1101 MADISON ST STE 700, Seattle, WA 98104
Open in Google Maps ↗

Other Identifiers 1

Medicaid2328191WA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.Insurance ›

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

Charles Stanton Hummel Md, Phd 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 ID4082911441
PECOS Enrollment IDI20250612001186
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 Charles Hummel reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Swedish Health Services
0.4 mi
Internal Medicine
800 5TH AVE, STE 600
Seattle, WA 98104
  • Reassigned Medicare billing, Washington enrollment
  • 1,270 clinicians in this Medicare group
NPI 1689612954 (206) 320-2700
Southern California Permanente Medical Group
919 mi
Health Maintenance Organization
43112 N 15TH ST
Lancaster, CA 93534
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1982863783 (661) 726-2279

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98104 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
$143.76 typical visit price
range $63.67 – $189.37
Typical copayment $35.94 (range $15.91 – $47.34)
Most-billed visit code 99204
Established Patient
$78.74 typical visit price
range $21.12 – $155.00
Typical copayment $19.68 (range $5.28 – $38.75)
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.

NOELLE D BRODEUR CNM, ARNP
Advanced Practice Midwife
1101 MADISON ST STE 700
SEATTLE, WA 98104
King County (206) 215-6300
DR. MOLLY COULTER ECKMAN MD
Obstetrics & Gynecology
1101 MADISON ST STE 700
SEATTLE, WA 98104
King County (206) 215-6300
NICKY LEYDEN INGRISANO MD
Obstetrics & Gynecology
1101 MADISON ST STE 700
SEATTLE, WA 98104
King County (206) 215-6300
LINDA LARSON ARNP
Nurse Practitioner (Women's Health)
1101 MADISON ST STE 700
SEATTLE, WA 98104
King County (206) 215-6300
JOSHUA DUANE KNAPP MD
Obstetrics & Gynecology
1101 MADISON ST STE 700
SEATTLE, WA 98104
King County (206) 215-6300
MORGAN CHRISTINE AURELIO CNM
Advanced Practice Midwife
1101 MADISON ST STE 700
SEATTLE, WA 98104
King County (206) 215-6900
ROBINSON GRAY REED MSN CNM ARNP IBCLC
Advanced Practice Midwife
1101 MADISON ST STE 700
SEATTLE, WA 98104
King County (206) 215-6900
KATHERINE N DEJONG MD
Obstetrics & Gynecology
1101 MADISON ST STE 700
SEATTLE, WA 98104
King County (206) 215-6300

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 Charles Hummel's NPI number?

The NPI number for Charles Hummel is 1851737043. It was assigned to this individual provider in the NPPES registry on May 15, 2013.

Where is Charles Hummel located?

Charles Hummel practices at 1101 Madison St Ste 700, Seattle, WA 98104. The listed phone number is (206) 215-6300.

What is Charles Hummel's specialty?

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

Is Charles Hummel enrolled in Medicare?

Yes. Charles Hummel 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 Charles Hummel's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Charles Hummel reassigns Medicare benefits to 2 organizations: Swedish Health Services (Seattle, WA) and Southern California Permanente Medical Group (Lancaster, CA). 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 Charles Hummel's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Charles Hummel accept?

Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Charles Hummel as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Charles Hummel was last updated on February 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.