WILLIAM THOMSON LENNOX III DO
NPI 1144427436
Anesthesiology in York, PA

Q: What is William Lennox's NPI number?

The NPI number for William Lennox is 1144427436. It was assigned to this individual provider in the NPPES registry on June 29, 2007.

Q: What is William Lennox's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for William Lennox was last updated on September 13, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since June 29, 2007PECOS EnrolledAccepts Medicare Assignment

1001 S GEORGE ST, YORK, PA 17403(717) 812-7687(717) 741-9641 Get Directions Write a Review

NPPES record last updated: September 13, 2024. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 13, 2024, Mar 3, 2023, Jul 7, 2022 (3 updates tracked since 2022).

On this page

About William Thomson Lennox Iii Do NPPES

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

WILLIAM THOMSON LENNOX III DO (NPI 1144427436) is an individual anesthesiology provider in York, Pennsylvania, licensed in Pennsylvania (OS021651) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS, is affiliated with Wellspan York Hospital, and maintains 7 additional practice locations.

NPPES Registry Identity

NPI1144427436

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameWILLIAM THOMSON LENNOX IIICredential: DO

Location Address1001 S GEORGE STYork, PA 17403-3676

Mailing Address601 Memory LnYork, PA 17402-2231 · (717) 851-1405

Phone(717) 812-7687

Fax(717) 741-9641

Sole ProprietorNo

Medical School CMSUniversity Of New England, College Of Osteo MedicineGraduated 2003

Enumeration DateJune 29, 2007

Last NPPES UpdateSeptember 13, 20243 updates tracked since enumeration

NPPES CertifiedSeptember 13, 2024

✔ NPI 1144427436 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

Licenses✔ Licensed in PA · OS021651✔ Licensed in MD · H67493

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.

1001 S GEORGE ST, York, PA 17403

Open in Google Maps ↗

Secondary Practice Locations 7

Location 1501 E Main StWaynesboro, PA 17268-2353 · Phone (717) 765-3425

Location 2169 Martin AveEphrata, PA 17522-1734 · Phone (717) 733-0311

Location 312 St Paul DrChambersburg, PA 17201-1035 · Phone (717) 217-6072

Location 425 Monument RdYork, PA 17403-5060 · Phone (717) 741-8250

Location 555 Monument RdYork, PA 17403-5023 · Phone (717) 812-6425

Location 6252 S 4th StLebanon, PA 17042-6111 · Phone (717) 270-7500

Location 7112 N 7th StChambersburg, PA 17201-1720 · Phone (717) 267-7164

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

William Thomson Lennox Iii Do 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 ID5799871927

PECOS Enrollment IDI20211208003058

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

Medicare enrollment records show William Lennox reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Wellspan Medical Group

Same address

Pediatrics

1001 S GEORGE ST
York, PA 17403

Reassigned Medicare billing, Pennsylvania enrollment
3,080 clinicians in this Medicare group

NPI 1124104245 (717) 851-3884

University Of Maryland St. Joseph Medical Group, LLC

39 mi

General Practice

7505 OSLER DR SUITE 402
Towson, MD 21204

Reassigned Medicare billing, Maryland enrollment
501 clinicians in this Medicare group

NPI 1770836785 (410) 427-5330

First Colonies Anesthesia Associates, LLC

53 mi

Anesthesiology

9841 BROKEN LAND PKWY STE 310
Columbia, MD 21046

Reassigned Medicare billing, District of Columbia and Maryland enrollments
717 clinicians in this Medicare group

NPI 1740218767 (443) 276-7624

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

Areas of Expertise CMS Part B claims 15

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.

Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand 01810

Anesthesia for procedures on the forearm, wrist, and hand involves administering medication to block sensation in these areas. This helps ensure comfort and painlessness during surgeries or treatments involving nerves, muscles, tendons, and tissue in these regions.

49 services48 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

47 services41 patients

Anesthesia for extensive surgery on spine 00670

Anesthesia for extensive spine surgery involves medication to block pain and make you unconscious during the procedure. It ensures comfort and prevents movement. Two types may be used: general (you sleep) or regional (numbs a large area). The choice depends on the surgery specifics and your health.

41 services41 patients

Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) 64415

This procedure involves injecting a numbing agent or steroid into your arm's nerve bundle. It's done to manage pain or inflammation. The injection helps block nerve signals that cause discomfort, providing relief. It's a safe, common procedure.

39 services39 patients

Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) 64447

This procedure involves injecting a numbing agent and/or steroid into a nerve in your thigh. It's done to alleviate pain or inflammation. A needle will be carefully positioned near the nerve, and the medicine will be administered.

37 services37 patients

Anesthesia for procedure for total knee joint replacement 01402

Anesthesia for a total knee joint replacement numbs your body to eliminate pain during surgery. This could be general anesthesia where you're unconscious, or regional anesthesia where only the leg is numb. It's administered by a specialist, ensuring safety and comfort.

32 services32 patients

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731

This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.

25 services24 patients

Anesthesia for total hip replacement 01214

Anesthesia for total hip replacement is a medical service where medication is given to eliminate pain during surgery. Two types are commonly used: general anesthesia, making you unconscious, or spinal anesthesia, numbing the lower body. The choice depends on your health and your doctor's recommendation.

23 services23 patients

Other procedure on nervous system 64999

A procedure on the nervous system can involve various techniques to diagnose or treat conditions affecting your brain, spinal cord, or nerves. These can include surgeries, tests, or therapies. It's done by specialized doctors to help improve your neurological health.

19 services19 patients

Anesthesia for other procedure on forearm, wrist, or hand bones 01830

Anesthesia for procedures on forearm, wrist, or hand bones involves administering medications to block sensation in the specific area. It ensures you don't feel pain during the procedure. It can be local (numbing a small area) or regional (numbing a larger part of the body).

18 services18 patients

Anesthesia for x-ray or radiation therapy 01922

Anesthesia for x-ray or radiation therapy involves administering medication to help you relax or sleep during the procedure. It's used to ensure comfort, minimize movement, and reduce anxiety. The type of anesthesia used depends on the procedure and patient's health.

18 services18 patients

Anesthesia for other procedure on lower leg, ankle, and foot bones 01480

Anesthesia for procedures on lower leg, ankle, and foot bones involves administering medication to block pain and sensation in these areas. This allows doctors to perform necessary treatments or surgeries without causing discomfort. The type of anesthesia used can vary based on the specific procedure.

15 services15 patients

Anesthesia for open or endoscopic total shoulder joint replacement 01638

Anesthesia for total shoulder joint replacement, either open or endoscopic, involves using medications to block pain during surgery. It can be general (you're asleep) or regional (only the area being operated on is numbed). This ensures comfort and stillness, facilitating a successful procedure.

12 services12 patients

Continuous infusion of anesthetic agent and/or steroid into lower back and leg nerve (sciatic nerve) through catheter 64446

This procedure involves a steady flow of medication, either anesthetic or steroid, into your lower back and leg nerve. It's designed to manage pain by numbing the area or reducing inflammation. The process is safe, monitored, and typically well-tolerated.

12 services11 patients

Ultrasonic guidance for needle placement 76942

Ultrasonic guidance for needle placement is a technique where sound waves create images that help accurately position the needle during procedures. This method ensures precision, minimizes discomfort, and increases safety.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Wellspan York Hospital

Acute Care Hospitals · York, PA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390046

Location1001 South George StreetYork, PA 17403 · York County

Emergency services Birthing friendly

Wellspan Surgery And Rehabilitation Hospital

Acute Care Hospitals · York, PA

OwnershipVoluntary non-profit - Private

CMS Certification Number390327

Location55 Monument RoadYork, PA 17403 · York County

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.

MRS. KAREN SMAY FRY CCC-SLP

Speech-Language Pathologist

1001 S GEORGE ST
YORK, PA 17403

York County (717) 851-2601

MRS. ANURADHA SHARMA CRNP

Nurse Practitioner (Adult Health)

1001 S GEORGE ST, 3RD FLOOR
YORK, PA 17403

York County (717) 851-4005

DR. SAHIL JAIN M.D.

Family Medicine

1001 S GEORGE ST, YORK HOSPITAL
YORK, PA 17403

York County (717) 851-2521

ADRIENNE CHAKOT CRNA

Nurse Anesthetist, Certified Registered

1001 S GEORGE ST
YORK, PA 17403

York County (717) 812-7687

BRIAN DAVID HOLSINGER MD

Emergency Medicine

1001 S GEORGE ST
YORK, PA 17403

York County (717) 851-2311

NICOLE S BENZING PAC

Physician Assistant (Medical)

1001 S GEORGE ST
YORK, PA 17403

York County (717) 851-2465

JACOB RUSSELL MCKENZIE MD

Emergency Medicine

1001 S GEORGE ST
YORK, PA 17403

York County (717) 851-2311

MUSTAFA TAHIR MD

Internal Medicine

1001 S GEORGE ST
YORK, PA 17403

York County (717) 741-8003

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 William Lennox's NPI number?

The NPI number for William Lennox is 1144427436. It was assigned to this individual provider in the NPPES registry on June 29, 2007.

Where is William Lennox located?

William Lennox practices at 1001 S George St, York, PA 17403. The listed phone number is (717) 812-7687.

What is William Lennox's specialty?

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

Is William Lennox enrolled in Medicare?

Yes. William Lennox 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 William Lennox's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Lennox reassigns Medicare benefits to 3 organizations: Wellspan Medical Group (York, PA), University Of Maryland St. Joseph Medical Group, LLC (Towson, MD) and First Colonies Anesthesia Associates, LLC (Columbia, MD). 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 William Lennox's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is William Lennox affiliated with any hospitals?

According to CMS data, William Lennox is affiliated with Wellspan York Hospital and Wellspan Surgery And Rehabilitation Hospital.

When was this NPI record last updated?

The NPPES record for William Lennox was last updated on September 13, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.