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STEPHEN LOCKWOOD
NPI 1902432784
Anesthesiology in Madison, WI

Active since March 12, 2020PECOS EnrolledAccepts Medicare Assignment
700 S PARK ST, MADISON, WI 53715(608) 251-6100(608) 258-5222 Get Directions Write a Review

NPPES record last updated: June 15, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 19, 2021, Mar 12, 2020 (2 updates tracked since 2020).

About Stephen Lockwood NPPES

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

STEPHEN LOCKWOOD (NPI 1902432784) is an individual anesthesiology provider in Madison, Wisconsin, licensed in Wisconsin (87396-20) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Ssm Health St Mary's Hospital - Madison, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1902432784
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameSTEPHEN LOCKWOOD
Location Address700 S PARK STMadison, WI 53715-1830
Mailing Address817 N Ainsworth StPortland, OR 97217-2201 · (912) 547-7317
Phone(608) 251-6100
Fax(608) 258-5222
Sole ProprietorNo
Medical School CMSOregon Health Sciences University School Of MedicineGraduated 2021
Enumeration DateMarch 12, 2020
Last NPPES UpdateJune 15, 20262 updates tracked since enumeration
NPPES CertifiedJune 15, 2026
✔ NPI 1902432784 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in WI · 87396-20
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
700 S PARK ST, Madison, WI 53715
Open in Google Maps ↗

Secondary Practice Locations 3

Location 13181 SW Sam Jackson Park RdPortland, OR 97239-3011 · Phone (503) 494-0807
Location 2817 N Ainsworth StPortland, OR 97217-2201 · Phone (912) 547-7317
Location 3600 Highland AveMadison, WI 53792-3011 · Phone (912) 547-7317

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

Stephen Lockwood 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 ID3971905001
PECOS Enrollment IDI20260616000889
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 Reassignment

Medicare enrollment records show Stephen Lockwood reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Dean Health Systems, Inc
0.4 mi
Allergy & Immunology
1211 FISH HATCHERY RD
Madison, WI 53715
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,377 clinicians in this Medicare group
NPI 1053358846 (608) 252-8000

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.

Ssm Health St Mary's Hospital - Madison

Acute Care Hospitals · Madison, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520083
Location700 South Park StMadison, WI 53715 · Dane County
Emergency services Birthing friendly

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.

CHRISTOPHER DO
Physician Assistant
700 S PARK ST
MADISON, WI 53715
Dane County (608) 251-6100
JEREMI THOMAS OLSON PA-C
Physician Assistant (Surgical)
700 S PARK ST, DEAN ST. MARY'S OUTPATIENT CENTER
MADISON, WI 53715
Dane County (608) 260-2900
TIMOTHY J MORTON PA-C
Physician Assistant
700 S PARK ST, DEAN MEDICAL CENTER
MADISON, WI 53715
Dane County (608) 251-6100
STEPHEN H VANDER SLUIS
Anesthesiology
700 S PARK ST
MADISON, WI 53715
Dane County (608) 251-6100
BENJAMIN KLEIBER M.D.
Internal Medicine (Cardiovascular Disease)
700 S PARK ST, DEAN & ST. MARY'S OUTPATIENT CENTER
MADISON, WI 53715
Dane County (608) 260-2900
ERIN M MULLAN-TOWNS PA-C
Physician Assistant
700 S PARK ST
MADISON, WI 53715
Dane County (608) 260-2900
CONNIE SUE MCCULLICK APNP
Nurse Practitioner
700 S PARK ST
MADISON, WI 53715
Dane County (608) 251-6100
JUSTIN ALLEN LEHRKE CRNA
Nurse Anesthetist, Certified Registered
700 S PARK ST
MADISON, WI 53715
Dane County (608) 251-6100

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 Stephen Lockwood's NPI number?

The NPI number for Stephen Lockwood is 1902432784. It was assigned to this individual provider in the NPPES registry on March 12, 2020.

Where is Stephen Lockwood located?

Stephen Lockwood practices at 700 S Park St, Madison, WI 53715. The listed phone number is (608) 251-6100.

What is Stephen Lockwood's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Stephen Lockwood enrolled in Medicare?

Yes. Stephen Lockwood 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 organization bills Medicare for Stephen Lockwood's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Lockwood reassigns Medicare benefits to Dean Health Systems, Inc (Madison, WI). The 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 Stephen Lockwood's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Stephen Lockwood affiliated with any hospitals?

According to CMS data, Stephen Lockwood is affiliated with Ssm Health St Mary's Hospital - Madison.

When was this NPI record last updated?

The NPPES record for Stephen Lockwood was last updated on June 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.