Herbert Mao, DO
Orthopaedic Surgery Physician · Longview, WA
Herbert Mao, DO is an orthopaedic surgery physician with a practice address in Longview, Washington, and NPI 1063075067, issued on Apr 16, 2019. Check the license (Washington OP61494774, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Herbert Mao
- Credential
- DO
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- OP61494774 WA
Self-reported in NPPES; status is on the state search - Practice location
- 625 9TH Ave Ste 210, Longview, WA 98632
- Phone
- (360) 501-3400
- Enumerated
- Apr 16, 2019
- Record last updated
- Aug 11, 2025
- Medicare enrollment
- Enrolled (PECOS I20240823000217); accepts Medicare assignment
- Medical or professional school
- Campbell Univ School Of Osteopathic Medicine, 2019
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 656 in Washington → Look up another NPI →
Also registered at 625 9TH Ave Ste 210
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cristy Auckland, ARNPNurse Practitioner1922835156
- Nichol Halverson, ARNPNurse Practitioner1033540919
- Ashley Hawkes, ARNPNurse Practitioner1407402845
- Ansab Khwaja, MD PCOrthopaedic Surgery Physician1366896797
- Peter Kung, M.D.Orthopaedic Surgery Physician1225169279
- Anthony Lauder, MDOrthopaedic Hand Surgery Physician1316990088
Verify Herbert Mao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP61494774Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
68 Medicare Part D claims for 39 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 32 claims were for opioids.
Most prescribed
- Oxycodone Hcl21 claims
- Meloxicam12 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: $615.40
1 payment: travel and lodging; the largest payer was Arthrex, Inc. 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.
Bills Medicare through one group practice
- Longview Orthopedic Associates PLLCLongview, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Herbert Mao among 656 orthopaedic surgery physician records in Washington
Herbert Mao, DO is one of 656 orthopaedic surgery physician records with a practice address in Washington. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 95% of them.
- NPI issued2019 · 95% of these records are older, 3% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2019 · median 2004 among the 385 with a school on file
- Record last updated2025 · 63% 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 Washington 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 Washington
There are 656 orthopaedic surgery physician records in Washington.
All 656 in Washington → Every provider in Longview → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Bruce Blackstone, M.D.Longview, WA 986321891760211
- Ansab Khwaja, MD PCLongview, WA 986321366896797
- Jon Kretzler, M.D.Longview, WA 986321417922840
- Peter Kung, M.D.Longview, WA 986321225169279
- Tony Lin, M.D.Longview, WA 986321043414741
- Tiffany LiuLongview, WA 986321528562964
- William Turner, M.D.Longview, WA 986321225003213
- Todd Borus, MDVancouver, WA 986641700858651
Common questions
What is Herbert Mao, DO's NPI number?
Herbert Mao, DO's National Provider Identifier (NPI) is 1063075067, issued on Apr 16, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Herbert Mao, DO located?
The NPPES record lists a practice address at 625 9TH Ave Ste 210, Longview, WA, 98632. Phone: (360) 501-3400. Providers update this record themselves, so call before visiting.
How can I verify Herbert Mao, DO's license?
NPPES lists Washington license number OP61494774, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Herbert Mao, DO prescribe under Medicare Part D?
In 2024, Herbert Mao, DO had 68 Medicare Part D claims for 39 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.