William A. Parker, MD
Allergy & Immunology Physician · Beavercreek, OH
William A. Parker, MD is an allergy & immunology physician with a practice address in Beavercreek, Ohio, and NPI 1780665430, issued on Nov 9, 2005. Check the license (Ohio 35-05-8156-P, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- William A. Parker
- Credential
- MD
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- 35-05-8156-P OH
Self-reported in NPPES; status is on the state search - Practice location
- 2359 Lakeview Drive, Beavercreek, OH 45431
- Phone
- (937) 431-0721
- Enumerated
- Nov 9, 2005
- Record last updated
- Nov 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (937) 431-5419
- Medicaid ID
- 0857603 OH
- Medicare enrollment
- Enrolled (PECOS I20040511000516); accepts Medicare assignment
- Medical or professional school
- Tulane University School Of Medicine, 1981
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 132 in Ohio → Look up another NPI →
Verify William A. Parker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35-05-8156-PCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
600 Medicare Part D claims for 138 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 46% of claims.
Most prescribed
- Montelukast Sodium94 claims
- Fluticasone Propionate53 claims
- Spiriva Respimat52 claims
- Albuterol Sulfate Hfa43 claims
- Azelastine Hcl43 claims
- Epinephrine31 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: $1,071.85
36 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 2,496 providers of this specialty with any payment received $8,321.81 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
- Psf PLLCBeavercreek, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William A. Parker among 132 allergy & immunology physician records in Ohio
William A. Parker, MD is one of 132 allergy & immunology physician records with a practice address in Ohio. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1981 · median 2006 among the 93 with a school on file
- Record last updated2021 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in Ohio
There are 132 allergy & immunology physician records in Ohio.
All 132 in Ohio → Every provider in Beavercreek → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Roua Azmeh, MDDayton, OH 454291285920744
- Thad Francis Ocampo, M.D.Wpafb, OH 454331710184759
- Arturo Bonnin, MDCenterville, OH 454581790761823
- Charles Debrosse, M.D.Dayton, OH 454581700043155
- Harcharan SinghCenterville, OH 454581861484800
- Dana Esham, MDChillicothe, OH 456011710181375
- Patricia Ghory, MDCincinnati, OH 452551649298829
- Ann Ghory, M.DCincinnati, OH 452551194759118
Common questions
What is William A. Parker, MD's NPI number?
William A. Parker, MD's National Provider Identifier (NPI) is 1780665430, issued on Nov 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William A. Parker, MD located?
The NPPES record lists a practice address at 2359 Lakeview Drive, Beavercreek, OH, 45431. Phone: (937) 431-0721. Providers update this record themselves, so call before visiting.
How can I verify William A. Parker, MD's license?
NPPES lists Ohio license number 35-05-8156-P, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William A. Parker, MD prescribe under Medicare Part D?
In 2024, William A. Parker, MD had 600 Medicare Part D claims for 138 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.