William Clifford Pannell, MD
Orthopaedic Surgery Physician · Los Angeles, CA
William Clifford Pannell, MD is an orthopaedic surgery physician with a practice address in Los Angeles, California, and NPI 1972913762, issued on May 1, 2014. Check the license (California A132633, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William Clifford Pannell
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- A132633 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1520 San Pablo St Ste 2000, Los Angeles, CA 90033
- Phone
- (323) 442-5860
- Enumerated
- May 1, 2014
- Record last updated
- Aug 12, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 2,276 in California → Look up another NPI →
Also registered at 1520 San Pablo St Ste 2000
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Elke Ahlmann, M.D.Orthopaedic Surgery Physician1578781191
- Ram Alluri, M.D.Orthopaedic Surgery of the Spine Physician1487064150
- Camille AmparoPhysician Assistant1104567932
- Constance AngelesNurse Practitioner1780929042
- Ali Azad, MDOrthopaedic Hand Surgery Physician1487064127
Verify William Clifford Pannell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A132633Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
120 Medicare Part D claims for 62 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 54 claims were for opioids.
Most prescribed
- Celecoxib31 claims
- Oxycodone-Acetaminophen30 claims
- Hydrocodone-Acetaminophen15 claims
- Naproxen14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $437.56
6 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
William Clifford Pannell among 2,276 orthopaedic surgery physician records in California
William Clifford Pannell, MD is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 82% of them.
- NPI issued2014 · 82% of these records are older, 16% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2019 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in California
There are 2,276 orthopaedic surgery physician records in California.
All 2,276 in California → Every provider in Los Angeles → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Elke Ahlmann, M.D.Los Angeles, CA 900331578781191
- Madhav Boddula, M.D., M.P.H.Los Angeles, CA 900331740355643
- Paul CarterLos Angeles, CA 900331982788485
- Lucille ChailleLos Angeles, CA 900331003024407
- Kurt DrollLos Angeles, CA 900331447334917
- Zegergis LebsekalLos Angeles, CA 900331770791154
- Jackson LeeLos Angeles, CA 900331669527289
- Jay Lieberman, MDLos Angeles, CA 900331316959935
Common questions
What is William Clifford Pannell, MD's NPI number?
William Clifford Pannell, MD's National Provider Identifier (NPI) is 1972913762, issued on May 1, 2014. An NPI identifies a provider in billing; it is not a license.
Where is William Clifford Pannell, MD located?
The NPPES record lists a practice address at 1520 San Pablo St Ste 2000, Los Angeles, CA, 90033. Phone: (323) 442-5860. Providers update this record themselves, so call before visiting.
How can I verify William Clifford Pannell, MD's license?
NPPES lists California license number A132633, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Clifford Pannell, MD prescribe under Medicare Part D?
In 2024, William Clifford Pannell, MD had 120 Medicare Part D claims for 62 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.