Physician Profile
Based in Walnut Creek, CA, William C. Longton, MD is listed in the NPI registry under anesthesiology. William graduated from University of Arizona College of Medicine in 1989. According to Medicare claims data, William cared for 3,261 Medicare patients across 7,038 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and injection of drug or substance under skin or into muscle.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
1601 YGNACIO VALLEY RD
Walnut Creek, CA 94598
Within Anesthesiology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Anesthesia complications
Back & spine
Chronic pain
Facial & jaw pain
General pain
Head & facial pain
Headaches
Joint pain
Mental health
Muscle pain
Musculoskeletal pain
Nerve pain
Pelvic pain
Post-surgery recovery
Sedation & anesthesia
Spine pain
Ablation
Head & facial procedures
Implants & devices
Infusion therapies
Infusion therapy
Joint injections
Muscle injections
Nerve blocks
Nerve injections
Nerve procedures
Pain relief procedures
Regional anesthesia
Sedation
Sedation & anesthesia
Spine injections
Spine procedures
7,038 services · 3,261 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of trigger points, 3 or more muscles | Procedure | 20553 |
131 | More than most peers in Anesthesiology |
| Injection of anesthetic agent and/or steroid into other nerve or branch | Procedure | 64450 |
123 | More than most peers in Anesthesiology |
| Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level | Procedure | 64483 |
79 | More often than most peers in Anesthesiology |
| Injection of anesthetic agent and/or steroid into suprascapular shoulder nerve | Procedure | 64418 |
76 | |
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
76 | More often than most peers in Anesthesiology |
| Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level | Procedure | 64484 |
60 | More often than most peers in Anesthesiology |
| Injection of lower or sacral spine facet joint using imaging guidance, single level | Procedure | 64493 |
55 | More often than most peers in Anesthesiology |
| Injection of trigger points, 1-2 muscles | Procedure | 20552 |
55 | More often than most peers in Anesthesiology |
| Injection of lower or sacral spine facet joint using imaging guidance, second level | Procedure | 64494 |
52 | More often than most peers in Anesthesiology |
| Destruction of lower or sacral spinal facet joint nerves using imaging guidance, single facet joint | Procedure | 64635 |
47 | More often than most peers in Anesthesiology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Longton is an anesthesiologist in Walnut Creek, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Anesthesiology”.
NPI registry
Dr. Longton is listed at 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (925) 939-3000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Longton's National Provider Identifier is 1275625204. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Longton attended University of Arizona College of Medicine, graduating in 1989. This comes from the CMS National Downloadable File.
CMS public data
Dr. Longton has 37 years experience. Calculated from a graduation year of 1989, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Longton performs procedures including injection of trigger points, 3 or more muscles, injection of anesthetic agent and/or steroid into other nerve or branch and injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level; reads or performs imaging such as ultrasonic guidance for needle placement; provides treatments such as injection of drug or substance under skin or into muscle and administration of psychological or neuropsychological test by technician, first 30 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Longton. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.