Johnnie Mao, M.D.
Internal Medicine Physician · Bethlehem, PA
Johnnie Mao, M.D. is an internal medicine physician with a practice address in Bethlehem, Pennsylvania, and NPI 1710410071, issued on Apr 4, 2017. Check the license (Pennsylvania MD470972, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Johnnie Mao
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD470972 PA
Self-reported in NPPES; status is on the state search - Practice location
- 801 Ostrum St, Bethlehem, PA 18015
- Phone
- (484) 526-4658
- Enumerated
- Apr 4, 2017
- Record last updated
- May 2, 2022
- Medicare enrollment
- Enrolled (PECOS I20200623002270); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at 801 Ostrum St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Samuel Acquah, MDAnesthesiology Physician1851823785
Verify Johnnie Mao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD470972Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average internal medicine physician in 2024
438 Medicare Part D claims for 208 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 18 claims were for opioids.
Most prescribed
- Cefdinir30 claims
- Pantoprazole Sodium25 claims
- Prednisone21 claims
- Torsemide21 claims
- Amlodipine Besylate16 claims
- Oxycodone Hcl15 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 MIPS final score for 2023 (Medicare payment program): 95.6 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 3 group practices
- Gslpg, IncOrwigsburg, PA
- St Lukes Physician Group IncBethlehem, PA
- St Lukes Warren Physician Group PCPhillipsburg, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Johnnie Mao among 7,300 internal medicine physician records in Pennsylvania
Johnnie Mao, M.D. is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% 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 68% of them.
- NPI issued2017 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2016 · median 2008 among the 4,208 with a school on file
- Record last updated2022 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
157 internal medicine physician records list a practice address in Bethlehem
They are 157 of the 4,797 NPPES records with a practice address in Bethlehem, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Bethlehem → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- George Daoud, DOBethlehem, PA 180151861597585
- Fabio Dorville, M.D.Fountain Hill, PA 180151396794913
- Kaushik Kundu, M.D.Fountain Hill, PA 180151942259577
- David Leh, MDBethlehem, PA 180151174621981
- Hetul Mehta, D.O.Bethlehem, PA 180151578669479
Common questions
What is Johnnie Mao, M.D.'s NPI number?
Johnnie Mao, M.D.'s National Provider Identifier (NPI) is 1710410071, issued on Apr 4, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Johnnie Mao, M.D. located?
The NPPES record lists a practice address at 801 Ostrum St, Bethlehem, PA, 18015. Phone: (484) 526-4658. Providers update this record themselves, so call before visiting.
How can I verify Johnnie Mao, M.D.'s license?
NPPES lists Pennsylvania license number MD470972, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Johnnie Mao, M.D. prescribe under Medicare Part D?
In 2024, Johnnie Mao, M.D. had 438 Medicare Part D claims for 208 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Johnnie Mao, M.D.'s MIPS final score?
The 2023 MIPS final score is 95.6 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.