Howard Mitz, D.O.
NPI 1558365155 · Gastroenterology Physician · Littleton, NH
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Howard Mitz, D.O. is a Gastroenterology Physician provider in Littleton, NH (NPI 1558365155).
Provider details
- NPI number
- 1558365155
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 9856 (NH)
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
21 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
939 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 190 | $92 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 137 | $9 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 109 | $457 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 104 | $130 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 81 | $333 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
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 | 176 | 42 |
| Omeprazole | 104 | 24 |
| Esomeprazole Magnesium | 23 | — |
| Famotidine | 23 | — |
| Lipase/Protease/Amylasebrand: Creon | 20 | — |
| Mesalamine | 15 | — |
| Linaclotidebrand: Linzess | 13 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$242 across 1 record (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
- 2005-06-10
- Last updated
- 2021-02-23
- Certified
- 2021-02-23
Frequently asked questions
- What is Howard Mitz's NPI number?
- Howard Mitz's National Provider Identifier (NPI) is 1558365155, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Howard Mitz's specialty?
- Howard Mitz is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Howard Mitz located?
- Howard Mitz's practice location on file with NPPES is 220 Cottage St, Littleton, NH 03561-4101.
- What is Howard Mitz's phone number?
- The practice phone number listed in the NPPES registry for Howard Mitz is (603) 444-0272.
- Does Howard Mitz accept Medicare?
- Howard Mitz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Howard Mitz's NPI active?
- Yes — Howard Mitz's NPI (1558365155) is active in the NPPES registry as of the last update on 2021-02-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.