John Helzberg, M.D.
NPI 1508970120 · Gastroenterology Physician · Kansas City, MO
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Helzberg, M.D. is a Gastroenterology Physician provider in Kansas City, MO (NPI 1508970120).
Provider details
- NPI number
- 1508970120
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- R9B14 (MO)
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
19 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
140 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 53 | $138 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 49 | $93 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 23 | $95 |
| Measurement of Liver Stiffness91200 | 15 | $10 |
Typical Medicare-allowed amounts for these services range $10–$138 (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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 69 | 20 |
| Rifaximinbrand: Xifaxan | 48 | — |
| Ursodiol | 46 | 12 |
| Furosemide | 30 | — |
| Azathioprine | 26 | — |
| Spironolactone | 20 | — |
| Carvedilol | 14 | — |
| Mesalamine | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-19
- Last updated
- 2017-11-08
Frequently asked questions
- What is John Helzberg's NPI number?
- John Helzberg's National Provider Identifier (NPI) is 1508970120, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Helzberg's specialty?
- John Helzberg is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is John Helzberg located?
- John Helzberg's practice location on file with NPPES is 4320 Wornall Rd, Kansas City, MO 64111-5941.
- What is John Helzberg's phone number?
- The practice phone number listed in the NPPES registry for John Helzberg is (816) 932-7900.
- Does John Helzberg accept Medicare?
- John Helzberg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Helzberg's NPI active?
- Yes — John Helzberg's NPI (1508970120) is active in the NPPES registry as of the last update on 2017-11-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.