Dr. Howard Steven Mitz, DO
- Medicare services, 2024
- 4,903
- Medicare patients, 2024
- 385
- Part D claims, 2024
- 500
- Hospital affiliations
- 5
- Industry payments
- $358
- Practice address
- 600 St Johnsbury Road, Littleton, NH 03561
- Practice phone
- Call (603) 444-9000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mitz's professional email, personal email and mobile number
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Dr. Howard Steven Mitz is a gastroenterologist in Littleton, New Hampshire
Dr. Mitz practices at Littleton Regional Healthcare in Littleton, New Hampshire, part of Dartmouth-Hitchcock Health.
Dr. Mitz's NPI, 1558365155, was assigned on June 10, 2005. Dr. Mitz graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 1985. Dr. Mitz holds New Hampshire license 9856.
- NPI
- 1558365155NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557383197
- NPI enumeration date
- June 10, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (603) 444-9000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Howard Steven Mitz practices at Littleton Regional Healthcare in Littleton, New Hampshire
Dr. Mitz's primary practice is Littleton Regional Healthcare, at 600 St Johnsbury Road, Littleton, NH 03561 in Grafton County. The practice phone is (603) 444-9000.
- Littleton Regional Healthcare600 St Johnsbury Road, Littleton, NH 03561 · Grafton CountyPhone(603) 444-9000
Source: Dmand AI Affiliation Data
Dr. Howard Steven Mitz is affiliated with 5 sites of care
Dr. Mitz's primary practice is Littleton Regional Healthcare in Littleton, New Hampshire, part of Dartmouth-Hitchcock Health. Dr. Mitz is also affiliated with MaineHealth Memorial Hospital. Dmand AI also links Dr. Mitz to 3 more hospitals, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Howard Steven Mitz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mitz practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Littleton Regional Healthcare | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Howard Steven Mitz is one of 87 gastroenterologists in New Hampshire
Gastroenterology is Dr. Mitz's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Mitz is licensed in New Hampshire.
Specialties and state licenses
- Gastroenterology, New HampshirePrimary
Gastroenterologists near Dr. Mitz
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Howard Steven Mitz billed Medicare for 4,903 services in 2024
CMS data shows 4,903 Medicare services from Dr. Mitz across 17 procedure codes in 2024, for 385 Medicare patients. Medicare paid $118,133 for them. Every service was in an office.
Dr. Mitz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 5,9772024: 3,96434%
- Office and hospital visits
- 2023: 5482024: 44619%
- Surgery
- 2023: 5202024: 43417%
- Lab and pathology
- 2023: 1332024: 4368%
- Tests and treatments
- 2023: 02024: 16
Dr. Mitz compared with the New Hampshire median for gastroenterologists, 2024
- Dr. Mitz
- New Hampshire median
- Medicare services
- 4,903vs 49210.0 times
- Medicare patients
- 385vs 3578% above
- Part D claims
- 385vs 22869% above
Medians across 82 gastroenterologists in New Hampshire with Dmand AI profiles that report each measure.
Dr. Mitz's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mitz and other gastroenterologists in New Hampshire.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Howard Steven Mitz treated 385 Medicare patients in 2024, average age 73
CMS counts 385 Medicare patients who saw Dr. Mitz in 2024. The largest group is 65 to 74, with 187 patients. 59% of them have high cholesterol, and 57% have high blood pressure. 7% are also on Medicaid. Their average risk score is 0.79, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Mitz's median patient age at 66, with 53% women.
Dr. Mitz's Medicare patients by age, 2024
Dr. Mitz's Medicare patients by sex, 2024
- Women20654%
- Men17946%
Chronic conditions among Dr. Mitz's Medicare patients, 2024
- High cholesterol59%
- High blood pressure57%
- Arthritis45%
- Anxiety22%
- Mood disorders21%
- Depression18%
- Diabetes17%
- Atrial fibrillation13%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mitz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Howard Steven Mitz wrote 500 Medicare Part D claims in 2024
In 2024, Dr. Mitz wrote 500 Medicare Part D claims for 113 patients. 88% of them were for generic drugs. CMS names the drug for 385 of them, across 8 drugs with 11 or more claims each, at $69,377 in total drug cost. In 2023, CMS named 437 claims across 9 drugs.
Dr. Mitz's Part D claims by kind of drug, 2024
- Generic438 claims88%
- Brand-name62 claims12%
Dr. Mitz's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4372024: 38512%
Drugs named by CMS: 8 in 2024, 9 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Howard Steven Mitz ranks in the 96th percentile for colonoscopy in Medicare
Dr. Mitz accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 260 procedures of colonoscopy by Dr. Mitz, more than 96% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Mitz ranks in Medicare procedure volume
- Colonoscopy
- 96th percentile260 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 80th percentile120 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Howard Steven Mitz received $358 in industry payments from 2016 to 2024
CMS Open Payments shows 4 general payments to Dr. Mitz from 4 drug and device companies from 2016 to 2024. Debt forgiveness make up the largest share, 68% of the total. Olympus America Inc. paid the most, $242.
General payments to Dr. Mitz by program year, 2016 to 2024
General payments to Dr. Mitz by kind, 2016 to 2024
- Debt forgiveness$24268%
- Food and beverage$11632%
Companies that paid Dr. Mitz the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Howard Steven Mitz graduated from Kansas City University of Med & Biosciences, College of Osteo Med
Dr. Mitz graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Howard Steven Mitz's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Howard Steven Mitz
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Howard Steven Mitz's NPI number?
Dr. Howard Steven Mitz's NPI number is 1558365155. It was assigned on June 10, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Howard Steven Mitz?
Dr. Howard Steven Mitz is a gastroenterologist in Littleton, New Hampshire. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Howard Steven Mitz practice?
Dr. Mitz practices at 600 St Johnsbury Road, Littleton, NH 03561. Dr. Mitz's primary practice is Littleton Regional Healthcare in Littleton, New Hampshire, part of Dartmouth-Hitchcock Health. Dmand AI also links Dr. Mitz to 3 hospitals.
What is Dr. Howard Steven Mitz's office phone number?
The practice phone on file for Dr. Mitz is (603) 444-9000.
What is Dr. Howard Steven Mitz's medical license number?
Dr. Mitz holds New Hampshire license 9856.
Which hospitals is Dr. Howard Steven Mitz affiliated with?
Dr. Mitz practices at Littleton Regional Healthcare in Littleton, New Hampshire. Dr. Mitz is also affiliated with MaineHealth Memorial Hospital. Dmand AI links Dr. Mitz to 3 more hospitals.
Does Dr. Howard Steven Mitz accept Medicare?
Yes. CMS data shows Dr. Mitz billed Medicare for 4,903 services in 2024, and Dr. Mitz accepts Medicare assignment.
How many Medicare patients does Dr. Howard Steven Mitz see?
CMS counts 385 Medicare patients who saw Dr. Mitz in 2024, with an average age of 73.
What services does Dr. Howard Steven Mitz bill to Medicare?
In 2024, Dr. Mitz's most billed Medicare services were injected or infused drug (J2704), office visit, established patient (99213) and surgery: heart and blood vessels (36415).
Where did Dr. Howard Steven Mitz go to medical school?
Dr. Mitz graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 1985.
Show 3 more questionsShow fewer questions
What drugs does Dr. Howard Steven Mitz prescribe most?
In 2024 Medicare Part D data, Dr. Mitz's most prescribed drugs by claims were Pantoprazole Sodium, Omeprazole and Esomeprazole Magnesium.
Has Dr. Howard Steven Mitz received payments from drug or device companies?
CMS Open Payments shows $358 in general payments to Dr. Mitz from 4 companies from 2016 to 2024. The largest total came from Olympus America Inc.
How long has Dr. Howard Steven Mitz been practicing?
Dr. Mitz graduated from medical school in 1985, 41 years ago.
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