Mark Zukunft, M.D.
NPI 1437563855 · Emergency Medicine Physician · San Jose, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Zukunft, M.D. is a Emergency Medicine Physician provider in San Jose, CA (NPI 1437563855).
Provider details
- NPI number
- 1437563855
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 125064693 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 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
20 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) |
|---|---|---|
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 20 | $75 |
Typical Medicare-allowed amounts for these services range $75–$75 (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 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetronbrand: Ondansetron Odt | 53 | 53 |
| Ibuprofen | 42 | 42 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 39 | 39 |
| Oxycodone Hcl | 30 | 30 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 29 | 29 |
| Doxycycline Monohydrate | 23 | 23 |
| Prednisone |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-06-13
- Last updated
- 2021-12-16
Frequently asked questions
- What is Mark Zukunft's NPI number?
- Mark Zukunft's National Provider Identifier (NPI) is 1437563855, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Zukunft's specialty?
- Mark Zukunft is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Zukunft located?
- Mark Zukunft's practice location on file with NPPES is 250 Hospital Pkwy Dept of, San Jose, CA 95119-1103.
- What is Mark Zukunft's phone number?
- The practice phone number listed in the NPPES registry for Mark Zukunft is (408) 972-6175.
- Does Mark Zukunft accept Medicare?
- Mark Zukunft is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Zukunft's NPI active?
- Yes — Mark Zukunft's NPI (1437563855) is active in the NPPES registry as of the last update on 2021-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.