William Wai-Ynn Loong, PA-C
Physician Assistant · Cartersville, GA
William Wai-Ynn Loong, PA-C is a physician assistant with a practice address in Cartersville, Georgia, and NPI 1326415563, issued on Aug 24, 2015. Check the license (Georgia 8082, as entered in NPPES) with the Georgia board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Wai-Ynn Loong
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 8082 GA
Self-reported in NPPES; status is on the state search - Practice location
- 150 Gentilly Blvd, Cartersville, GA 30120
- Phone
- (770) 606-8359
- Enumerated
- Aug 24, 2015
- Record last updated
- May 12, 2025
- Fax
- (770) 382-5762
- Medicare enrollment
- Enrolled (PECOS I20160920000737); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 4,662 in Georgia → Look up another NPI →
Also registered at 150 Gentilly Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mary Barfield, MDFamily Medicine Physician1184647984
- Sarah Bell, PA-CPhysician Assistant1366089823
- Digant Bhatt, MDCardiovascular Disease Physician1902045495
Verify William Wai-Ynn Loong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Georgia board licenses this profession
Search for license 8082Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.0 times the Medicare Part D claims of the average physician assistant in 2024
5,013 Medicare Part D claims for 703 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Metoprolol Tartrate416 claims
- Eliquis415 claims
- Clopidogrel367 claims
- Atorvastatin Calcium364 claims
- Furosemide351 claims
- Metoprolol Succinate341 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 77.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,676.43
65 payments; by number, the most common kind was food and beverage; the largest payer was Actelion Pharmaceuticals US, 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Harbin Clinic LLCCartersville, GA
- Northside Cardiovascular Professional Services, LLCRoswell, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Wai-Ynn Loong among 4,662 physician assistant records in Georgia
William Wai-Ynn Loong, PA-C is one of 4,662 physician assistant records with a practice address in Georgia. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 40% of them.
- NPI issued2015 · 40% of these records are older, 56% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2015 · median 2018 among the 2,761 with a school on file
- Record last updated2025 · 40% 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 Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
31 physician assistant records list a practice address in Cartersville
They are 31 of the 938 NPPES records with a practice address in Cartersville, and 4,662 physician assistant records in Georgia.
All 4,662 in Georgia → Every provider in Cartersville → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Sarah Bell, PA-CCartersville, GA 301201366089823
- James Boutselis, PA-CCartersville, GA 301201952380198
- Rachelrui Cashen, PACartersville, GA 301201558791772
- Martha Felder, PA-CCartersville, GA 301201760606206
- Victoria Galloway, PA-CCartersville, GA 301201992804645
- Stephanie Hyson-Guevara, PACartersville, GA 301201174718647
- Kylie Little, PA-SCartersville, GA 301201033397591
- Laura McCall, PACCartersville, GA 301201275576191
Common questions
What is William Wai-Ynn Loong, PA-C's NPI number?
William Wai-Ynn Loong, PA-C's National Provider Identifier (NPI) is 1326415563, issued on Aug 24, 2015. An NPI identifies a provider in billing; it is not a license.
Where is William Wai-Ynn Loong, PA-C located?
The NPPES record lists a practice address at 150 Gentilly Blvd, Cartersville, GA, 30120. Phone: (770) 606-8359. Providers update this record themselves, so call before visiting.
How can I verify William Wai-Ynn Loong, PA-C's license?
NPPES lists Georgia license number 8082, as entered by the provider. Search the Georgia board that licenses this profession; the NPPES record confirms identity only.
How much does William Wai-Ynn Loong, PA-C prescribe under Medicare Part D?
In 2024, William Wai-Ynn Loong, PA-C had 5,013 Medicare Part D claims for 703 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is William Wai-Ynn Loong, PA-C's MIPS final score?
The 2023 MIPS final score is 77.5 of 100, reported for the practice group. 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.