NPPES file of Aug 9, 2026

William O. Webber, RPA-C

Physician Assistant · Columbia, MD

William O. Webber, RPA-C is a physician assistant with a practice address in Columbia, Maryland, and NPI 1376065250, issued on Jul 12, 2017. Check the license (Maryland C09195, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1376065250
Name
William O. Webber
Credential
RPA-C
Primary taxonomy
Physician Assistant 363A00000X
License numbers
C09195 MD
021009 NY
Self-reported in NPPES; status is on the state search
Practice location
5755 Cedar LN, Columbia, MD 21044
Phone
(410) 955-5000
Enumerated
Jul 12, 2017
Record last updated
Feb 5, 2024
Medicare enrollment
Enrolled (PECOS I20240215000991); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 5755 Cedar LN

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mohammed Abdel-Rahim, DOHospitalist Physician1316437569
  2. Adegboyega Abdulkadir, M.D.Neonatal-Perinatal Medicine Physician1750554143
  3. Nancy Acs, LCSW-CClinical Social Worker1033411814
  4. Eniola Adejumo, MDHospitalist Physician1104110675
  5. Farzaneh Agahi, DNPCritical Care Medicine Registered Nurse1902661283
  6. Nickolas Agathis, M.D. (IN MAY 2015)Pediatrics Physician1740676535

Verify William O. Webber in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license C09195
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Maryland license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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The MIPS final score for 2023 (Medicare payment program): 95.2 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score84.7
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $125.00

1 payment: food and beverage; the largest payer was Gilead Sciences, Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Webber$125.00
  2. Specialty average$841.65

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 4 group practices

  1. Johns Hopkins Community Physicians, IncBaltimore, MD
  2. Lifebridge Community Physicians IncBaltimore, MD
  3. Northwest Hospital Center IncRandallstown, MD
  4. Sinai Hospital OF Baltimore, IncBaltimore, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

William O. Webber among 3,224 physician assistant records in Maryland

William O. Webber, RPA-C is one of 3,224 physician assistant records with a practice address in Maryland. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 52% of them.

  • NPI issued2017 · 52% of these records are older, 43% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2017 · median 2017 among the 1,974 with a school on file
  • Record last updated2024 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

74 physician assistant records list a practice address in Columbia

They are 74 of the 6,690 NPPES records with a practice address in Columbia, and 3,224 physician assistant records in Maryland.

The 8 physician assistant records with the nearest ZIP codes

  1. Christina Angelini, PAColumbia, MD 210441609843788
  2. Lisa Ashton, P.A.C.Columbia, MD 210441619088325
  3. Nancy Doong, PA-CColumbia, MD 210441306855473
  4. Mary Kate Ferguson, PA-CColumbia, MD 210441609840321
  5. Florence Freund, PA-CColumbia, MD 210441184698870
  6. Diane Gaspar, P.A. - C.Columbia, MD 210441245459734
  7. Maria Gregory, PA-CColumbia, MD 210441669440210
  8. Allison Kehoe, PA-CColumbia, MD 210441255390662

Common questions

What is William O. Webber, RPA-C's NPI number?

William O. Webber, RPA-C's National Provider Identifier (NPI) is 1376065250, issued on Jul 12, 2017. An NPI identifies a provider in billing; it is not a license.

Where is William O. Webber, RPA-C located?

The NPPES record lists a practice address at 5755 Cedar LN, Columbia, MD, 21044. Phone: (410) 955-5000. Providers update this record themselves, so call before visiting.

How can I verify William O. Webber, RPA-C's license?

NPPES lists Maryland license number C09195, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

What is William O. Webber, RPA-C's MIPS final score?

The 2023 MIPS final score is 95.2 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.