Clyde Markowitz, MD
NPI 1417981135 · Neurology Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clyde Markowitz, MD is a Neurology Physician provider in Philadelphia, PA (NPI 1417981135).
Provider details
- NPI number
- 1417981135
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD066765L (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
587 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) |
|---|---|---|
| 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 | 236 | $17 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 144 | $146 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 98 | $99 |
| Removal of Cerebrospinal Fluid With Lower Back Spinal Tap for Diagnostic Test62270 | 82 | $65 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 27 | $67 |
Typical Medicare-allowed amounts for these services range $17–$146 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Glatiramer Acetatebrand: Copaxone | 255 | 33 |
| Gabapentin | 118 | 31 |
| Dalfampridinebrand: Dalfampridine Er | 101 | 13 |
| Ofatumumabbrand: Kesimpta Pen | 97 | 14 |
| Baclofen | 90 | 35 |
| Interferon Beta-1abrand: Avonex Pen (4 Pack) | 79 | — |
| Interferon Beta-1bbrand: Betaseron | 45 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$31,058 across 58 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
Registry dates
- Enumerated
- 2006-07-10
- Last updated
- 2015-08-06
Frequently asked questions
- What is Clyde Markowitz's NPI number?
- Clyde Markowitz's National Provider Identifier (NPI) is 1417981135, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clyde Markowitz's specialty?
- Clyde Markowitz is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Clyde Markowitz located?
- Clyde Markowitz's practice location on file with NPPES is 3400 Civic Center Blvd, Philadelphia, PA 19104-5127.
- What is Clyde Markowitz's phone number?
- The practice phone number listed in the NPPES registry for Clyde Markowitz is (215) 662-3606.
- Does Clyde Markowitz accept Medicare?
- Clyde Markowitz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clyde Markowitz's NPI active?
- Yes — Clyde Markowitz's NPI (1417981135) is active in the NPPES registry as of the last update on 2015-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.