Dennis Winkelman, D.O.
NPI 1255323424 · Family Medicine Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dennis Winkelman, D.O. is a Family Medicine Physician provider in Philadelphia, PA (NPI 1255323424).
Provider details
- NPI number
- 1255323424
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- OS008886L (PA)
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
331 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 164 | $136 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 101 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 31 | $141 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 19 | $96 |
| Administration of Influenza Virus VaccineG0008 | 16 | $33 |
Typical Medicare-allowed amounts for these services range $9–$141 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 158 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,025 | 261 |
| Amlodipine Besylate | 551 | 155 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 463 | 90 |
| Hydrochlorothiazide | 388 | 100 |
| Nifedipinebrand: Nifedipine Er | 334 | 87 |
| Lisinopril | 327 | 76 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-16
- Last updated
- 2021-02-22
- Certified
- 2021-02-22
Frequently asked questions
- What is Dennis Winkelman's NPI number?
- Dennis Winkelman's National Provider Identifier (NPI) is 1255323424, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dennis Winkelman's specialty?
- Dennis Winkelman is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Dennis Winkelman located?
- Dennis Winkelman's practice location on file with NPPES is 5325 Old York Rd Ste 15, Philadelphia, PA 19141-2983.
- What is Dennis Winkelman's phone number?
- The practice phone number listed in the NPPES registry for Dennis Winkelman is (215) 457-7700.
- Does Dennis Winkelman accept Medicare?
- Dennis Winkelman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dennis Winkelman's NPI active?
- Yes — Dennis Winkelman's NPI (1255323424) is active in the NPPES registry as of the last update on 2021-02-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.