Quick answers
- Does James P. Flaherty Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says James P. Flaherty Jr. accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does James P. Flaherty Jr. see?
- In 2024, CMS data shows 127 Original Medicare patients and 129 services for James P. Flaherty Jr.. This counts Original Medicare only and measures volume, not quality.
- What is James P. Flaherty Jr.'s NPI number?
- 1518147735. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for James P. Flaherty Jr., data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 127 |
|---|---|
| Services billed to Medicare | 129 |
| Different services or procedures | 37 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)15 services
- Anesthesia for other procedure on large bowel using an endoscope (00811)13 services
- Anesthesia for other procedure on lower abdomen (00840)13 services
- Anesthesia for fragmenting, manipulation and/or removal of kidney stone including use of an endoscope (00918)12 services
- Anesthesia for other procedure on upper abdomen (00790)11 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis59%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)36%
- Anxiety29%
- Diabetes28%
Hospitals where James P. Flaherty Jr. works
Medicare's Facility Affiliation Data lists James P. Flaherty Jr. at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Howard University Hospital CorpWashington, DC · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: not listed by Medicare · CCN 090003
- Sibley Memorial HospitalWashington, DC · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 090005
Practice locations
Addresses where James P. Flaherty Jr. is enrolled with Medicare (CMS data updated October 2, 2026).
- 2041 Georgia Ave NWWashington, DC 20060 (202) 865‑6100
- 5255 Loughboro Rd NWWashington, DC 20016 (202) 537‑4000
- 8905 Fairview RdSilver Spring, MD 20910 (888) 554‑0631
Group practices
Medicare enrollment lists James P. Flaherty Jr. as a member of these groups (CMS data updated October 2, 2026).
- Anesthesia Company LLC378 clinicians in the group
- Surgical Anesthesia Associates PLLC83 clinicians in the group
Specialties
- Anesthesiology Assistantprimary
Find other clinicians: Anesthesiology Assistant, District of Columbia →
Other anesthesiologist assistants in Washington
Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.
Other clinicians in Anesthesia Company LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | AA |
|---|---|
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518147735 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians