Gregory Stiefel, D.O.
NPI 1649267881 · Family Medicine Physician · Mullica Hill, NJ
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Stiefel, D.O. is a Family Medicine Physician provider in Mullica Hill, NJ (NPI 1649267881).
Provider details
- NPI number
- 1649267881
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- MB06817700 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,324 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 661 | $96 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 457 | $134 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 410 | $17 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 327 | $136 |
| Administration of Influenza Virus VaccineG0008 | 111 | $34 |
| Administration of Pneumococcal Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 95 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 526 | 162 |
| Atorvastatin Calcium | 482 | 148 |
| Lisinopril | 443 | 130 |
| Rosuvastatin Calcium | 434 | 131 |
| Hydrochlorothiazide | 287 | 96 |
| Pantoprazole Sodium | 264 | 84 |
| Levothyroxine Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-03
- Last updated
- 2013-04-03
Frequently asked questions
- What is Gregory Stiefel's NPI number?
- Gregory Stiefel's National Provider Identifier (NPI) is 1649267881, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Stiefel's specialty?
- Gregory Stiefel is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Stiefel located?
- Gregory Stiefel's practice location on file with NPPES is 201 Tomlin Station Rd, Mullica Hill, NJ 08062-1612.
- What is Gregory Stiefel's phone number?
- The practice phone number listed in the NPPES registry for Gregory Stiefel is (856) 241-2522.
- Does Gregory Stiefel accept Medicare?
- Gregory Stiefel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Stiefel's NPI active?
- Yes — Gregory Stiefel's NPI (1649267881) is active in the NPPES registry as of the last update on 2013-04-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.