Medicare Enrolled
Dr. William Longton, MD
Anesthesiology · Walnut Creek, CA
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Low-engagement
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Longton from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Longton
Dr. William Longton is an anesthesiology specialist in Walnut Creek, CA, with 19 years of NPI registration. Based on federal Medicare data, Dr. Longton performed 7,791 Medicare services across 3,872 unique beneficiaries.
Between the years covered by Open Payments, Dr. Longton received a total of $2,667 from 12 pharmaceutical and/or device companies across 49 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in anesthesiology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Longton is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 19 years in practice
▲ Top 1% volume in CA
$2,667 industry payments
Medicare Practice Summary
Medicare Utilization ↗7,791
Medicare services
Top 1% in CA for anesthesiology
3,872
Unique beneficiaries
$71
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~410 Medicare services per year of practice
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
2,070 | $116 | $460 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
1,126 | $83 | $325 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
779 | $13 | $69 |
| Ketorolac injection, per 15 mg An injection of ketorolac tromethamine, a nonsteroidal anti-inflammatory drug, administered in doses measured per 15 mg. |
432 | $0 | $25 |
| Drug screening test A laboratory test that uses a chemistry analyzer to detect the presence of drugs in a sample. |
359 | $60 | $350 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
352 | $1 | $25 |
| Behavioral health care management, 20+ minutes This service involves clinical staff time directed by a healthcare professional to manage behavioral health conditions. It requires at least 20 minutes of dedicated clinical staff time. |
332 | $41 | $175 |
| Trigger point injection, 3 or more muscles Injection of medication into three or more specific muscle trigger points to relieve pain. |
255 | $46 | $223 |
| Sedation by physician, initial 15 minutes Administration of a drug to induce depression of consciousness by the physician performing a procedure. This code covers the initial 15 minutes of sedation for patients aged 5 years or older. |
220 | $11 | $194 |
| Injection of anesthetic agent and/or steroid into other nerve or branch | 167 | $81 | $537 |
| Pyridoxine HCl injection, 100 mg An injection of pyridoxine hydrochloride, a form of vitamin B6, administered at a dose of 100 mg. |
120 | $8 | $25 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
105 | $155 | $585 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
101 | $165 | $635 |
| Psychological test administration, first 30 minutes A technician administers psychological or neuropsychological testing for the first 30 minutes. |
94 | $37 | $150 |
| Suprascapular nerve injection An injection of anesthetic and/or steroid medication into the suprascapular nerve in the shoulder area. |
92 | $92 | $705 |
| Psychological test evaluation, first hour A healthcare professional evaluates the results of psychological testing during an initial one-hour session. |
87 | $103 | $407 |
| Trigger point injection, 1-2 muscles A procedure involving the injection of medication into one or two specific muscles to treat trigger points. |
81 | $26 | $164 |
| Assessment of emotional or behavioral problems An evaluation to identify and understand emotional or behavioral issues. This process involves reviewing symptoms and behaviors to determine the nature of the concerns. |
76 | $5 | $25 |
| Steroid injection (triamcinolone) A 10 mg injection of triamcinolone acetonide, a corticosteroid medication. This code specifies the drug and dosage administered. |
72 | $1 | $10 |
| Ultrasound guidance for needle placement Use of ultrasound imaging to guide the precise placement of a needle during a medical procedure. |
71 | $58 | $400 |
| Additional sacral spine nerve root injection with imaging An injection of anesthetic and/or steroid medication into an additional sacral spine nerve root level, guided by imaging. |
70 | $58 | $470 |
| Joint injection, major joint Removal of fluid from a large joint and/or injection of medication into the joint space. |
65 | $64 | $360 |
| Office visit, established patient (10-19 min) An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition. |
59 | $54 | $200 |
| Remote therapy monitoring setup and education This service involves setting up equipment and providing patient education for the remote monitoring of therapy. |
57 | $20 | $79 |
| Manual therapy (hands-on treatment), per 15 min | 56 | $26 | $150 |
| Facet joint nerve destruction, single joint A procedure to destroy nerves in a single lower or sacral spinal facet joint using imaging guidance to target pain signals. |
48 | $247 | $2,654 |
| Spine facet joint injection with imaging guidance, single level An injection is administered into a single facet joint of the upper or middle spine while using imaging guidance to ensure accurate placement. |
45 | $115 | $934 |
| Facet joint injection, second level, with imaging An injection into a second spinal facet joint in the upper or middle spine, guided by imaging to ensure accurate placement. |
42 | $65 | $496 |
| Destruction of peripheral nerve or branch | 41 | $66 | $515 |
| Facet joint nerve destruction, additional joint This procedure uses imaging guidance to destroy nerves in an additional lower or sacral spinal facet joint. |
40 | $74 | $1,159 |
| New patient office visit, complex (60-74 min) | 32 | $182 | $770 |
| Spine facet joint injection with imaging guidance, single level An injection is administered into a single facet joint of the lower or sacral spine while using imaging guidance to ensure accurate placement. |
30 | $236 | $1,024 |
| Facet joint injection, second level, with imaging guidance An injection into a lower or sacral spine facet joint using imaging guidance for the second level treated. |
30 | $119 | $503 |
| Spinal scar tissue removal, multiple sessions A procedure to remove scar tissue within the spinal canal, performed in multiple sessions during a single day. |
29 | $215 | $1,494 |
| Injection of anesthetic or steroid into upper neck and back of head nerve An injection of an anesthetic agent and/or steroid into a nerve located in the upper neck and back of the head. |
28 | $56 | $670 |
| Lower back and sciatic nerve injection An injection of an anesthetic and/or steroid medication into the lower back and sciatic nerve. This procedure delivers medication directly to the nerve site. |
24 | $205 | $710 |
| Musculoskeletal remote monitoring device supply, 30 days A device supply that records and transmits data for remote monitoring of the musculoskeletal system over a 30-day period. |
20 | $55 | $230 |
| Facet joint nerve destruction, single joint This procedure uses imaging guidance to destroy the nerves supplying a single upper or middle spinal facet joint. It is performed to interrupt pain signals from that specific joint. |
17 | $223 | $2,447 |
| Imaging guidance for procedure, 60 minutes or less Use of imaging technology to guide a medical procedure. This service lasts 60 minutes or less. |
17 | $37 | $200 |
| Injection of anesthetic or steroid into sacroiliac joint with imaging guidance This procedure involves injecting an anesthetic or steroid medication into the joint connecting the lower spine and hip bone. Imaging guidance is used to ensure accurate placement of the injection. |
13 | $195 | $842 |
| Sacral spine nerve root injection with imaging guidance An injection of anesthetic and/or steroid medication into a sacral spine nerve root. The procedure uses imaging guidance to ensure accurate placement. |
13 | $313 | $1,104 |
| Hip injection of contrast under anesthesia A contrast dye is injected into the hip joint while the patient is under anesthesia to facilitate medical imaging. |
12 | $340 | $959 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
12 | $102 | $397 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
Industry Payment Transparency
Open Payments through 2024 ↗$2,667
Total received (2018-2024)
Avg $381/year across 7 years
Top 8% in CA for anesthesiology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
12
Companies
49
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$2,667 (100.0%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$239
2023
$52
2022
$92
2021
$52
2020
$194
2019
$732
2018
$1,304
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Saluda Medical Americas, Inc.
$116
PAINTEQ LLC
$96
Nevro Corp.
$28
Top 3 companies account for 100.0% of 2024 payments
All-time payments by company (2018-2024) ›
Abbott Laboratories
$1,224
Nevro Corp.
$831
SCILEX PHARMACEUTICALS INC.
$122
Saluda Medical Americas, Inc.
$116
PAINTEQ LLC
$96
PFIZER INC.
$92
Boston Scientific Corporation
$53
Stimwave Technologies Incorporated
$47
Medtronic USA, Inc.
$33
SPR Therapeutics, Inc
$27
Vertos Medical, Inc.
$21
Nuvectra Corporation
$5
Top 3 companies account for 81.6% of all-time payments
Associated products mentioned in payments ›
Algovita · Axium INS DRG IPG · EMBEDA · Evoke · LYRICA · MYSTIM · Neuromodulation Dspsbls and Accs · PAINTEQ · PROCLAIM · Proclaim Family of SCS IPGs · Proclaim IPG · REYVOW · SPRINT PNS System · SYNCHROMED · Senza · Senza Spinal Cord Stimulation System · WaveWriter Alpha Prime 16 · ZTLido · mild Device Kit
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 8% for anesthesiology in CA.
Geographic Context
Anesthesiologists within 10 mi
527
Per 100K population
45.4
County median income
$125,727
Nearest hospital
JOHN MUIR MEDICAL CENTER - WALNUT CREEK CAMPUS
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Longton is a clinical cardiology specialist, with above-average Medicare volume (top 1% in CA), with low-engagement industry engagement in the top 8% of CA peers, with 19 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Longton experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Longton performed 2,070 office visit, established patient (30-39 min) services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Longton receive payments from pharmaceutical companies?
Yes. Dr. Longton received a total of $2,667 from 12 companies across 49 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Longton's costs compare to other anesthesiologists in Walnut Creek?
Dr. Longton's average Medicare payment per service is $71. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Longton) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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