Dr. Otto Walter, MD

  • Tampa, FL
  • Pathologist
NPI1801942628PAC ID9830223676
Medicare services, 2024
2,312
Medicare patients, 2024
507
Publications
18
Hospital affiliations
6
Industry payments
$377
Practice address
3100 E Fletcher Ave, Tampa, FL 33613
Practice phone
Call (813) 615-7200
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

AdventHealth Tampa

Hospital · Tampa, Florida

See all 7 affiliations

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Dr. Otto Walter is a pathologist in Tampa, Florida

Dr. Walter practices at AdventHealth Tampa in Tampa, Florida, part of AdventHealth.

Dr. Walter's NPI, 1801942628, was assigned on January 26, 2007. Dr. Walter's Massachusetts license number on file is 239752.

NPI and contact details
Medicare PAC ID
9830223676
NPI enumeration date
January 26, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(813) 615-7200
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
59
Medical school graduation
1993

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Otto Walter practices at AdventHealth Tampa in Tampa, Florida

Dr. Walter's primary practice is AdventHealth Tampa, at 3100 E Fletcher Ave, Tampa, FL 33613 in Hillsborough County. The practice phone is (813) 615-7200.

  • AdventHealth Tampa
    3100 E Fletcher Ave, Tampa, FL 33613 · Hillsborough CountyPhone(813) 615-7200

Source: Dmand AI Affiliation Data

Dr. Otto Walter is affiliated with 6 sites of care and 1 medical group

Dr. Walter's primary practice is AdventHealth Tampa in Tampa, Florida, part of AdventHealth. Dr. Walter is also affiliated with AdventHealth Wesley Chapel. The medical group on file is Ruffolo, Hooper & Associates, MD, PA. Dmand AI also links Dr. Walter to 4 more hospitals, each named with a free account.

See all 7 affiliations for Dr. Walter

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Otto Walter's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walter practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
AdventHealth TampaAvailable with a free account
+5 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Otto Walter is one of 107 pathologists in Florida

Anatomic pathology is Dr. Walter's primary specialty in the NPI Registry, under taxonomy code 207ZP0101X. Dr. Walter is board certified in pathology - anatomic/pathology - clinical by the American Board of Pathology. Dmand AI has Dr. Walter's licenses on file in 3 states: Massachusetts, Florida and Connecticut.

Specialties and state licenses

  • Anatomic pathology, MassachusettsPrimaryLicense 239752 · 2009 to 2018 · taxonomy 207ZP0101X
  • Florida license2016 to 2026
  • Connecticut license2011 to 2013

Pathologists near Dr. Walter

Counts of pathologists 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. Otto Walter billed Medicare for 2,312 services in 2024

CMS data shows 2,312 Medicare services from Dr. Walter across 18 procedure codes in 2024, for 507 Medicare patients. Medicare paid $67,730 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 20242,312
Medicare patients507
Paid by Medicare$67,730
Procedure codes18

Dr. Walter's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Lab and pathology
2023: 2,0042024: 2,31215%

Dr. Walter compared with the Florida median for pathologists, 2024

  • Dr. Walter
  • Florida median
Medicare services
2,312vs 1,17896% above
Medicare patients
507vs 40425% above

Medians across 96 pathologists in Florida with Dmand AI profiles that report each measure.

Dr. Walter'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.

See all procedures by Dr. Walter

Need commercial claims for Dr. Walter?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Walter and other pathologists in Florida.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Otto Walter treated 507 Medicare patients in 2024, average age 73

CMS counts 507 Medicare patients who saw Dr. Walter in 2024. The largest group is 65 to 74, with 223 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 1.94, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Walter's median patient age at 56, with 62% women.

Medicare patients, 2024507
Average age73
Average risk score1.94
Also on Medicaid18%

Dr. Walter's Medicare patients by age, 2024

Dr. Walter's Medicare patients by sex, 2024

  • Women28256%
  • Men22544%

Chronic conditions among Dr. Walter's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis54%
  4. Ischemic heart disease45%
  5. Diabetes43%
  6. Anxiety38%
  7. Chronic kidney disease38%
  8. Mood disorders38%

Share of Medicare patients with each condition. A patient can have several.

Dr. Walter's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 56

Patient panel by sex, all payers

  • Women62%
  • Men37%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

How Dr. Otto Walter takes part in Medicare

Dr. Walter accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Otto Walter has 18 publications on record

Dmand AI links 18 papers to Dr. Walter, published from 2009 to 2022. 2013 was the busiest year, with 2. The most frequent topics are Appendiceal Neoplasms, Biomarkers, Tumor and Immunohistochemistry. Dr. Walter has published most often in Hum Pathol. Dr. Walter's most frequent co-authors are Carol M. Mathew, MD, Jaroslav Zivny, MD and Ali Akalin, MD.

Papers18
Years published2009 to 2022

Dr. Walter's papers by year, 2009 to 2022

Topics Dr. Walter writes about most

  • Appendiceal Neoplasms
  • Biomarkers, Tumor
  • Immunohistochemistry
  • Liver
  • Liver Regeneration
  • Mice, Inbred C57BL
  • Reperfusion Injury

Dr. Walter's most frequent co-authors

Recent publications by Dr. Walter

See all 18 publications and co-authors

See who Dr. Walter researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Walter works with, so you can find a warm path to the right pathologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Otto Walter received $377 in industry payments from 2016 to 2020

CMS Open Payments shows 3 general payments to Dr. Walter from 3 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 100% of the total. Roche Diagnostics Corporation paid the most, $161.

General payments to Dr. Walter by program year, 2016 to 2020

Companies that paid Dr. Walter the most, 2016 to 2020

Share is of all general payments to this clinician.

See all payments to Dr. Walter

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Otto Walter has 1 award and honors on record

Dmand AI lists 1 award for Dr. Walter, most recently Trauma Surgery Board Certification with "Excellent" Qualification in 1998.

Awards and honors for Dr. Walter

  1. 1998
    • Trauma Surgery Board Certification with "Excellent" Qualification

Source: Dmand AI Professional Profile Data

Dr. Otto Walter is board certified in pathology - anatomic/pathology - clinical

Dr. Walter is a member of ASCP, CAP and USCAP.

  1. Board certified in pathology - anatomic/pathology - clinicalAmerican Board of Pathology

Source: Dmand AI Professional Profile Data

Dr. Otto Walter accepts plans from 4 insurance carriers

Dr. Walter is in network with 4 carriers, including Excellus BlueCross BlueShield, CMS Medicare and RI State Medicaid. Medicaid plans come from the most carriers, 2. Check the plan with the practice before a visit.

  • Excellus BlueCross BlueShield
  • CMS Medicare
  • RI State Medicaid
  • VT State Medicaid

Plan types Dr. Walter accepts, by number of carriers

  1. Medicaid2
  2. Medicare2
  3. EPO1
  4. HMO1
  5. POS1
  6. PPO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Otto Walter's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Otto Walter

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. Otto Walter's NPI number?

Dr. Otto Walter's NPI number is 1801942628. It was assigned on January 26, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Otto Walter?

Dr. Otto Walter is a pathologist in Tampa, Florida. The primary specialty in the NPI Registry is Anatomic Pathology Physician (taxonomy code 207ZP0101X).

Where does Dr. Otto Walter practice?

Dr. Walter practices at 3100 E Fletcher Ave, Tampa, FL 33613. Dr. Walter's primary practice is AdventHealth Tampa in Tampa, Florida, part of AdventHealth. Dmand AI also links Dr. Walter to 4 hospitals.

What is Dr. Otto Walter's office phone number?

The practice phone on file for Dr. Walter is (813) 615-7200.

What is Dr. Otto Walter's medical license number?

Dr. Walter's Massachusetts license number on file is 239752, one of the licenses on file in 3 states.

Which states has Dr. Otto Walter been licensed in?

Dmand AI has state licenses on file for Dr. Walter in Massachusetts (2009 to 2018), Florida (2016 to 2026) and Connecticut (2011 to 2013).

Which hospitals is Dr. Otto Walter affiliated with?

Dr. Walter practices at AdventHealth Tampa in Tampa, Florida. Dr. Walter is also affiliated with AdventHealth Wesley Chapel. Dmand AI links Dr. Walter to 4 more hospitals.

What medical group is Dr. Otto Walter part of?

Dr. Walter is linked to Ruffolo, Hooper & Associates, MD, PA.

Does Dr. Otto Walter accept Medicare?

Yes. CMS data shows Dr. Walter billed Medicare for 2,312 services in 2024, and Dr. Walter accepts Medicare assignment.

How many Medicare patients does Dr. Otto Walter see?

CMS counts 507 Medicare patients who saw Dr. Walter in 2024, with an average age of 73.

Show 7 more questionsShow fewer questions

Is Dr. Otto Walter board certified?

Yes. Dr. Walter is board certified in pathology - anatomic/pathology - clinical by the American Board of Pathology.

What services does Dr. Otto Walter bill to Medicare?

In 2024, Dr. Walter's most billed Medicare services were lab and pathology test (88305), lab and pathology test (88341) and lab and pathology test (88307).

Has Dr. Otto Walter received payments from drug or device companies?

CMS Open Payments shows $377 in general payments to Dr. Walter from 3 companies from 2016 to 2020. The largest total came from Roche Diagnostics Corporation.

How long has Dr. Otto Walter been practicing?

Dr. Walter graduated from medical school in 1993, 33 years ago.

Does Dr. Otto Walter do research?

Dmand AI links 18 publications to Dr. Walter, published from 2009 to 2022.

Who does Dr. Otto Walter publish with?

Dr. Walter's most frequent co-authors are Carol M. Mathew, MD (2 shared papers), Jaroslav Zivny, MD (2 shared papers) and Ali Akalin, MD (1 shared paper).

What insurance does Dr. Otto Walter accept?

Dr. Walter is in network with 4 carriers, including Excellus BlueCross BlueShield, CMS Medicare and RI State Medicaid. Medicaid plans come from the most carriers, 2. Check the plan with the practice before a visit.

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