NPPES file of Aug 9, 2026

Stephen C. Lattanzi, M.D.

Hematology & Oncology Physician · Mountain Home, AR

Stephen C. Lattanzi, M.D. is a hematology & oncology physician with a practice address in Mountain Home, Arkansas, and NPI 1801894555, issued on Jul 7, 2005. Check the license (Arkansas E-9749, as entered in NPPES) on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801894555
Name
Stephen C. Lattanzi
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License numbers
E-9749 AR
035831 CT
Self-reported in NPPES; status is on the state search
Practice location
628 Hospital Dr, Mountain Home, AR 72653
Phone
(870) 425-4402
Enumerated
Jul 7, 2005
Record last updated
Dec 15, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(860) 437-2236
Medicaid ID
001358317 CT
Medicare enrollment
Enrolled (PECOS I20060221000501); accepts Medicare assignment
Medical or professional school
University Of Connecticut School Of Medicine, 1989
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 628 Hospital Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Nestor Arita, MDVascular Surgery Physician1124438072
  2. John Barrow, M.D.Obstetrics & Gynecology Physician1821037417
  3. Marcella Bramblett, APRNFamily Nurse Practitioner1720477086
  4. Diana Riley, P.A.Physician Assistant1912156068
  5. James Roelke, P.A.Medical Physician Assistant1447215066
  6. Amanda Thornton, ANPObstetrics & Gynecology Nurse Practitioner1992745012

Verify Stephen C. Lattanzi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArkansas State Medical Board
    Search for license E-9749
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Arkansas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

77% more Medicare Part D claims than the average hematology & oncology physician in 2024

1,551 Medicare Part D claims for 285 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 322 claims were for opioids.

  1. Stephen Lattanzi1,551
  2. Specialty average877

Most prescribed

  1. Oxycodone Hcl157 claims
  2. Eliquis125 claims
  3. Ondansetron Odt55 claims
  4. Mirtazapine54 claims
  5. Imatinib Mesylate52 claims
  6. Morphine Sulfate Er47 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 93.3 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score81.7
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%78.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $400.00

1 payment: consulting fee; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stephen Lattanzi$400.00
  2. Specialty average$7,481.41

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Northeast Medical Group IncWaterford, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Stephen C. Lattanzi among 103 hematology & oncology physician records in Arkansas

Stephen C. Lattanzi, M.D. is one of 103 hematology & oncology physician records with a practice address in Arkansas. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 88% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated1989 · median 2002 among the 80 with a school on file
  • Record last updated2016 · 34% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Arkansas

There are 103 hematology & oncology physician records in Arkansas.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Jamie Lee AldakkourMountain Home, AR 726531366070179
  2. Martin Barnes, M.D.Mountain Home, AR 726531730583089
  3. Peter Li, MDMountain Home, AR 726531942709647
  4. Richard White, M.D.Mountain Home, AR 726531700840980
  5. Dmitriy Zak, M.D.Mountain Home, AR 726531548371289
  6. K'Anne Arthur, MDFayetteville, AR 727031144663923
  7. Brooke Brander, DOFayetteville, AR 727031083838239
  8. Lynsay Brautnick, M.D.Fayetteville, AR 727031548317340

Common questions

What is Stephen C. Lattanzi, M.D.'s NPI number?

Stephen C. Lattanzi, M.D.'s National Provider Identifier (NPI) is 1801894555, issued on Jul 7, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Stephen C. Lattanzi, M.D. located?

The NPPES record lists a practice address at 628 Hospital Dr, Mountain Home, AR, 72653. Phone: (870) 425-4402. Providers update this record themselves, so call before visiting.

How can I verify Stephen C. Lattanzi, M.D.'s license?

NPPES lists Arkansas license number E-9749, as entered by the provider. Search the Arkansas State Medical Board at https://armedicalboard.adh.arkansas.gov/public/verify/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Stephen C. Lattanzi, M.D. prescribe under Medicare Part D?

In 2024, Stephen C. Lattanzi, M.D. had 1,551 Medicare Part D claims for 285 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Stephen C. Lattanzi, M.D.'s MIPS final score?

The 2023 MIPS final score is 93.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.