Denis John Ofallon, M.D.
Anesthesiology Physician · Rockville, MD
Denis John Ofallon, M.D. is an anesthesiology physician with a practice address in Rockville, Maryland, and NPI 1568418945, issued on May 26, 2006. Check the license (Maryland D39868, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Denis John Ofallon
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- D39868 MD
Self-reported in NPPES; status is on the state search - Practice location
- 1901 Research Blvd, Rockville, MD 20850
- Phone
- (301) 838-9606
- Enumerated
- May 26, 2006
- Record last updated
- Mar 9, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (301) 838-9029
- Medicaid ID
- 066751000 MD
- Medicare enrollment
- Enrolled (PECOS I20040519000778); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 1983
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 1,253 in Maryland → Look up another NPI →
Also registered at 1901 Research Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Melvin Coursey, M.D.Anesthesiology Physician1992750822
- Patrick Dono, M.D.Anesthesiology Physician1619915972
Verify Denis John Ofallon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D39868Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 66 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: $67.74
3 payments; by number, the most common kind was food and beverage; the largest payer was Salix Pharmaceuticals, a division of Bausch Health US, LLC. The 17,774 providers of this specialty with any payment received $669.59 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
- Anesthesia Company LLCAnnapolis, MD
- Anesthesia Dynamics LLCHagerstown, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Denis John Ofallon among 1,253 anesthesiology physician records in Maryland
Denis John Ofallon, M.D. is one of 1,253 anesthesiology physician records with a practice address in Maryland. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 49% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1983 · median 2005 among the 813 with a school on file
- Record last updated2010 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
81 anesthesiology physician records list a practice address in Rockville
They are 81 of the 14,353 NPPES records with a practice address in Rockville, and 1,253 anesthesiology physician records in Maryland.
All 1,253 in Maryland → Every provider in Rockville → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Marc Beck, M.D.Rockville, MD 208501912908526
- Jeffrey Briggs, M.D.Rockville, MD 208501801841747
- Melvin Coursey, M.D.Rockville, MD 208501992750822
- Lauren Deloach, M.D.Rockville, MD 208501104870039
- Danielle Dugan, D.ORockville, MD 208501194779116
- Stephanie Eiswert, M.D.Rockville, MD 208501700831674
- Roger Grayson, M.D.Rockville, MD 208501396746038
- Keith Hairston, M.D.Rockville, MD 208501164423968
Common questions
What is Denis John Ofallon, M.D.'s NPI number?
Denis John Ofallon, M.D.'s National Provider Identifier (NPI) is 1568418945, issued on May 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Denis John Ofallon, M.D. located?
The NPPES record lists a practice address at 1901 Research Blvd, Rockville, MD, 20850. Phone: (301) 838-9606. Providers update this record themselves, so call before visiting.
How can I verify Denis John Ofallon, M.D.'s license?
NPPES lists Maryland license number D39868, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Denis John Ofallon, M.D.'s MIPS final score?
The 2023 MIPS final score is 66 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.