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Edit this profileAt a glance
- 510 Upper Chesapeake Dr., Suite 417, Physicians Pavillion Ii, Bel Air, MD 21014
About Benjamin Diffenderfer
Benjamin W. Diffenderfer, PA-C is a physician assistant practicing in Bel Air, MD. Medicare claims data shows Benjamin provided 24,520 services to 875 patients. The services billed most often include injection, denosumab, 1 mg, injection, romosozumab-aqqg, 1 mg, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. This provider record is associated with NPI 1679857239.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (443) 643-3130
- Email not available
Practice Locations
510 UPPER CHESAPEAKE DR., SUITE 417 PHYSICIANS PAVILLION II
Bel Air, MD 21014
Procedures Most Often Billed to Medicare
24,520 services · 875 patients · 14 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Replacement of knee joint, both sides of knee | Procedure | 27447 |
38 | More often than most peers in Physician Assistant |
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
22 | Less often than most peers in Physician Assistant |
| Replacement of thigh bone and hip joint with prosthesis | Procedure | 27130 |
16 | Less often than most peers in Physician Assistant |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
260 | More than most peers in Physician Assistant |
| Injection, denosumab, 1 mg | Drug given | J0897 |
12,180 | More than most peers in Physician Assistant |
| Injection, romosozumab-aqqg, 1 mg | Drug given | J3111 |
11,340 | As often as other peers in Physician Assistant |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
405 | More than most peers in Physician Assistant |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
67 | More often than most peers in Physician Assistant |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
57 | More often than most peers in Physician Assistant |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
51 | As often as other peers in Physician Assistant |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other physician assistants at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 5
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 31 related providers in 4 groups
Other physician assistants in Bel Air 7
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2011 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Replacement of knee joint, both sides of knee 8
Providers in MD who bill this service to Medicare most often.
Common questions
What is Benjamin W. Diffenderfer's specialty?
Benjamin W. Diffenderfer is a physician assistant in Bel Air, MD. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Benjamin W. Diffenderfer?
Benjamin W. Diffenderfer is listed at 510 Upper Chesapeake Dr., Suite 417 Physicians Pavillion Ii, Bel Air, MD 21014. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Benjamin W. Diffenderfer?
The number on file is (443) 643-3130. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Benjamin W. Diffenderfer?
Benjamin W. Diffenderfer's National Provider Identifier is 1679857239. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Benjamin W. Diffenderfer's education?
Benjamin W. Diffenderfer attended Other, graduating in 2011. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Benjamin W. Diffenderfer have?
Benjamin W. Diffenderfer has 15 years experience. Calculated from a graduation year of 2011, reported in the CMS National Downloadable File.
CMS public data
What is Benjamin W. Diffenderfer known for?
According to Medicare billing data, Benjamin W. Diffenderfer performs procedures including replacement of knee joint, both sides of knee, aspiration and/or injection of fluid from large joint and replacement of thigh bone and hip joint with prosthesis; provides treatments such as injection of drug or substance under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Benjamin W. Diffenderfer's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Benjamin W. Diffenderfer. If this is you, claiming it is free.
Guide.md
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