Gregory Deirmengian, MD
NPI 1730249517 · Orthopaedic Surgery Physician · King of Prussia, PA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Deirmengian, MD is a Orthopaedic Surgery Physician provider in King of Prussia, PA (NPI 1730249517).
Provider details
- NPI number
- 1730249517
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- ME152545 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,261 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| X-Ray of Knee, 3 Views73562 | 331 | $44 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 284 | $96 |
| X-Ray of Hip, 2-3 Views73502 | 283 | $50 |
| Principal Care Management Services for a Single High-Risk Disease, First 30 Minutes Provided Personally By Qualified Health Care Professional, Per Calendar Month.99424 | 223 | $86 |
| X-Ray of Knee, 4 Or More Views73564 | 220 | $51 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 211 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 178 | 78 |
| Tramadol Hcl | 107 | 57 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 33 | 16 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$335 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 999 Route 73 N Ste 401Marlton, NJ 08053-1227Phone: (267) 339-3558Fax: (267) 339-3763
- 243 Hurffville Crosskeys RdSewell, NJ 08080-4011Phone: (267) 339-3558Fax: (267) 339-3763
Registry dates
- Enumerated
- 2006-12-11
- Last updated
- 2022-02-15
- Certified
- 2022-02-15
Frequently asked questions
- What is Gregory Deirmengian's NPI number?
- Gregory Deirmengian's National Provider Identifier (NPI) is 1730249517, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Deirmengian's specialty?
- Gregory Deirmengian is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Deirmengian located?
- Gregory Deirmengian's practice location on file with NPPES is 234 Mall Blvd Ste G30, King of Prussia, PA 19406-2921.
- What is Gregory Deirmengian's phone number?
- The practice phone number listed in the NPPES registry for Gregory Deirmengian is (267) 339-3558.
- Does Gregory Deirmengian accept Medicare?
- Gregory Deirmengian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Deirmengian's NPI active?
- Yes — Gregory Deirmengian's NPI (1730249517) is active in the NPPES registry as of the last update on 2022-02-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.