Dr. William Reed Shimberg, MD

  • Zephyrhills, FL
  • Internist
NPI1790147940PAC ID9638446040
Medicare services, 2024
473
Medicare patients, 2024
238
Part D claims, 2024
2,844
Publications
4
Hospital affiliations
1
Practice address
38021 Market Square Dr, Zephyrhills, FL 33542
Practice phone
Call (813) 715-0374
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Florida Medical Clinic Orlando Health Urgent Care

Urgent Care Center · Zephyrhills, Florida

See all 12 affiliations

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Dr. William Reed Shimberg is an internist in Zephyrhills, Florida

Dr. Shimberg practices at Florida Medical Clinic Orlando Health Urgent Care in Zephyrhills, Florida.

Dr. Shimberg's NPI, 1790147940, was assigned on March 27, 2016. Dr. Shimberg graduated from University of South Florida Morsani College of Medicine in 2016. Dr. Shimberg holds Florida license ME165844.

NPI and contact details
Medicare PAC ID
9638446040
NPI enumeration date
March 27, 2016
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(813) 715-0374
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
36
Medical school graduation
2016

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

Dr. William Reed Shimberg practices at Florida Medical Clinic Orlando Health Urgent Care in Zephyrhills, Florida

Dr. Shimberg's primary practice is Florida Medical Clinic Orlando Health Urgent Care, at 38021 Market Square Dr, Zephyrhills, FL 33542. The practice phone is (813) 715-0374.

  • Florida Medical Clinic Orlando Health Urgent Care
    38021 Market Square Dr, Zephyrhills, FL 33542Phone(813) 715-0374

Source: Dmand AI Affiliation Data

Dr. William Reed Shimberg is affiliated with 9 sites of care and 3 medical groups

Dr. Shimberg's primary practice is Florida Medical Clinic Orlando Health Urgent Care in Zephyrhills, Florida. Dr. Shimberg is also affiliated with BayCare St. Joseph's Hospital. The medical group on file is Florida Medical Clinic Orlando Health. Dmand AI also links Dr. Shimberg to 4 more home health agencies, 3 group practices and clinics and 2 medical groups, each named with a free account.

See all 12 affiliations for Dr. Shimberg

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

Dmand AI tracks the EHR system at Dr. William Reed Shimberg's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Shimberg practices, 9 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Florida Medical Clinic Orlando Health Urgent CareAvailable with a free account
+8 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. William Reed Shimberg is one of 9,009 internists in Florida

Internal medicine is Dr. Shimberg's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Shimberg is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Shimberg's licenses on file in 2 states: Florida and North Carolina.

Specialties and state licenses

  • Internal medicine, FloridaPrimaryLicense ME165844 · 2023 to 2026 · taxonomy 207R00000X
  • North Carolina licenseLicense 2019-01126 · 2016 to 2024

Clinical focus

Dmand AI lists acid reflux, acute mini-stroke (TIA), acute sinusitis, adjustment disease, aneurysm, anxiety, arthritis and asthma among the conditions Dr. Shimberg treats.

Internists near Dr. Shimberg

Counts of internists 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. William Reed Shimberg billed Medicare for 473 services in 2024

CMS data shows 473 Medicare services from Dr. Shimberg across 10 procedure codes in 2024, for 238 Medicare patients. Medicare paid $38,282 for them. Every service was in an office.

Medicare services, 2024473
Medicare patients238
Paid by Medicare$38,282
Procedure codes10

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

  • 2023
  • 2024
Office and hospital visits
2023: 4122024: 29429%
Other services
2023: 2342024: 13941%
Tests and treatments
2023: 682024: 4041%
Lab and pathology
2023: 1052024: 0100%

Dr. Shimberg compared with the Florida median for internists, 2024

  • Dr. Shimberg
  • Florida median
Medicare services
473vs 55515% below
Medicare patients
238vs 21511% above
Part D claims
2,173vs 4664.7 times

Medians across 8,488 internists in Florida with Dmand AI profiles that report each measure.

Dr. Shimberg'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. Shimberg

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

Dr. William Reed Shimberg treated 238 Medicare patients in 2024, average age 75

CMS counts 238 Medicare patients who saw Dr. Shimberg in 2024. The largest group is 75 to 84, with 102 patients. 71% of them have high blood pressure, and 71% have high cholesterol. Their average risk score is 1.14, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Shimberg's median patient age at 65, with 45% women.

Medicare patients, 2024238
Average age75
Average risk score1.14

Dr. Shimberg's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Shimberg's Medicare patients by sex, 2024

  • Women11147%
  • Men12753%

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

  1. High blood pressure71%
  2. High cholesterol71%
  3. Arthritis39%
  4. Ischemic heart disease34%
  5. Anxiety28%
  6. Diabetes27%
  7. Chronic kidney disease24%
  8. Mood disorders22%

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

Dr. Shimberg's patients across all payers

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

Patient panel by age, all payers

Median age 65

Patient panel by sex, all payers

  • Women45%
  • Men54%

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

Dr. William Reed Shimberg wrote 2,844 Medicare Part D claims in 2024

In 2024, Dr. Shimberg wrote 2,844 Medicare Part D claims for 442 patients. 88% of them were for generic drugs. CMS names the drug for 2,173 of them, across 56 drugs with 11 or more claims each, at $160,144 in total drug cost. In 2023, CMS named 3,005 claims across 80 drugs.

Part D claims, 20242,844
Drugs named by CMS56
Total drug cost$160,144
Part D patients442

Dr. Shimberg's Part D claims by kind of drug, 2024

  • Generic2,491 claims88%
  • Brand-name and other353 claims12%

Dr. Shimberg'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.

Drug classes CMS tracks in Dr. Shimberg's Part D claims, 2024

  • Opioids1%23 of 2,844 claims
  • Antibiotics1%38 of 2,844 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 3,0052024: 2,17328%

Drugs named by CMS: 56 in 2024, 80 in 2023.

See all prescribing by Dr. Shimberg

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. William Reed Shimberg offers telehealth to Medicare patients

Dr. Shimberg accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Shimberg as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. William Reed Shimberg has 4 publications on record

Dmand AI links 4 papers to Dr. Shimberg, published from 2014 to 2018. 2018 was the busiest year, with 2. Dr. Shimberg's most frequent co-authors are Theresa A. Zesiewicz, MD, Michael Andres Carranza, DO and Robert A. Hauser, MD.

Papers4
Years published2014 to 2018

Dr. Shimberg's most frequent co-authors

Recent publications by Dr. Shimberg

See all 4 publications and co-authors

See who Dr. Shimberg researches with

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

How network discovery works

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

Dr. William Reed Shimberg received $3,630 in industry payments from 2017 to 2025

CMS Open Payments shows 149 general payments to Dr. Shimberg from 31 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $538.

General payments to Dr. Shimberg by program year, 2017 to 2025

Companies that paid Dr. Shimberg the most, 2017 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Shimberg

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

Dr. William Reed Shimberg graduated from University of South Florida Morsani College of Medicine

Dr. Shimberg graduated from University of South Florida Morsani College of Medicine in 2016.

  1. Medical schoolUniversity of South Florida Morsani College of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. William Reed Shimberg accepts plans from 16 insurance carriers

Dr. Shimberg is in network with 16 carriers, including Aetna, United Healthcare and Cigna. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

  • Aetna
  • United Healthcare
  • Cigna
  • Elevance
  • HCSC
  • Aspirus Health Plan
  • Blue Cross Blue Shield of Massachusetts
  • Blue Cross Blue Shield of Michigan
  • +8 more carriersWith a free account

Plan types Dr. Shimberg accepts, by number of carriers

  1. PPO10
  2. HMO8
  3. Medicare6
  4. EPO4
  5. POS3
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. William Reed Shimberg'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)
Part D prescribingMedicare 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 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)
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. William Reed Shimberg

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. William Reed Shimberg's NPI number?

Dr. William Reed Shimberg's NPI number is 1790147940. It was assigned on March 27, 2016, and it is active in the NPI Registry.

What kind of doctor is Dr. William Reed Shimberg?

Dr. William Reed Shimberg is an internist in Zephyrhills, Florida. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. William Reed Shimberg practice?

Dr. Shimberg practices at 38021 Market Square Dr, Zephyrhills, FL 33542. Dr. Shimberg's primary practice is Florida Medical Clinic Orlando Health Urgent Care in Zephyrhills, Florida. Dmand AI also links Dr. Shimberg to 4 home health agencies, 3 group practices and clinics and 2 medical groups.

What is Dr. William Reed Shimberg's office phone number?

The practice phone on file for Dr. Shimberg is (813) 715-0374.

What is Dr. William Reed Shimberg's medical license number?

Dr. Shimberg holds Florida license ME165844, one of the licenses on file in 2 states.

Which states has Dr. William Reed Shimberg been licensed in?

Dmand AI has state licenses on file for Dr. Shimberg in Florida (2023 to 2026) and North Carolina (2016 to 2024).

Which hospitals is Dr. William Reed Shimberg affiliated with?

Dr. Shimberg is affiliated with BayCare St. Joseph's Hospital.

What medical group is Dr. William Reed Shimberg part of?

Dr. Shimberg is linked to Florida Medical Clinic Orlando Health. Dmand AI links Dr. Shimberg to 2 more medical groups.

Does Dr. William Reed Shimberg accept Medicare?

Yes. CMS data shows Dr. Shimberg billed Medicare for 473 services in 2024, and Dr. Shimberg accepts Medicare assignment.

Does Dr. William Reed Shimberg offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Shimberg as offering telehealth services.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. William Reed Shimberg see?

CMS counts 238 Medicare patients who saw Dr. Shimberg in 2024, with an average age of 75.

Is Dr. William Reed Shimberg board certified?

Yes. Dr. Shimberg is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. William Reed Shimberg bill to Medicare?

In 2024, Dr. Shimberg's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and medicare service (G0439).

Where did Dr. William Reed Shimberg go to medical school?

Dr. Shimberg graduated from University of South Florida Morsani College of Medicine in 2016.

What drugs does Dr. William Reed Shimberg prescribe most?

In 2024 Medicare Part D data, Dr. Shimberg's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Levothyroxine Sodium.

Has Dr. William Reed Shimberg received payments from drug or device companies?

CMS Open Payments shows $3,630 in general payments to Dr. Shimberg from 31 companies from 2017 to 2025. The largest total came from Novo Nordisk Inc.

How long has Dr. William Reed Shimberg been practicing?

Dr. Shimberg graduated from medical school in 2016, 10 years ago.

Does Dr. William Reed Shimberg do research?

Dmand AI links 4 publications to Dr. Shimberg, published from 2014 to 2018.

Who does Dr. William Reed Shimberg publish with?

Dr. Shimberg's most frequent co-authors are Theresa A. Zesiewicz, MD (2 shared papers), Michael Andres Carranza, DO (1 shared paper) and Robert A. Hauser, MD (1 shared paper).

What insurance does Dr. William Reed Shimberg accept?

Dr. Shimberg is in network with 16 carriers, including Aetna, United Healthcare and Cigna. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

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