2026 NPPES data Internal Medicine Physician NPI 1356620157 MD
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Phuong Flanagan, MD

Internal Medicine Physician in Fort Myers, Florida. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
623
Medicare Part D claims · 265 beneficiaries · Internal Medicine Physician avg: 3K

What the federal data shows

Phuong Flanagan, MD filed 623 Medicare Part D claims in 2023 as a Internal Medicine Physician in Fort Myers, Florida.

623
Part D claims, 2023
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

Phuong Flanagan, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

623 Top 31% higher than 69% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

Phuong Flanagan, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Phuong Flanagan, MD?

Quality data not reported

NPI registry status

Active

Issued 08/10/2011

NPI 1356620157

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

623 77% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Florida

How Internal Medicine Physician compares to other specialties among Florida providers

Florida providers

Internal Medicine Physician share within Florida

1. Internal Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Internal Medicine Physician share within Florida

Specialty board-certification context

Estimated specialty board-certified rate — Internal Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Internal Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Phuong Flanagan, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 2675 WINKLER AVE FL 2, Fort Myers, FL, 33901, with a listed phone of (855) 979-5700. NPI 1356620157 was issued on 08/10/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Flanagan most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 623 prescription claims written by this provider, covering 265 Medicare beneficiaries and totaling roughly $37K in drug spend, with an opioid prescribing rate of 3.5%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

2675 WINKLER AVE FL 2
Fort Myers, FL 33901

Provider Details

NPI 1356620157
Specialty Internal Medicine Physician
Credentials MD
Gender Female
NPI Issued 08/10/2011

Hospital and facility affiliations

Facilities where Phuong Flanagan, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

Millennium Physician Group LLC
Port Charlotte, FL

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — Florida FLDOH 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~75K Florida medical licensees in 2023 — they are NOT specific to Phuong Flanagan, MD. To verify Phuong Flanagan, MD's current license status, search the FLDOH public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

480
Total board actions, Florida 2023
Across 467 cases
6.40
Actions per 1,000 licensees
Florida statewide rate
monetary fine
Most common action type
138 cases

FLDOH publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Florida disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

623
Total Claims
$37K
Total Drug Cost
265
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
671
Total Day Supply
14,664
Generic Drug Cost
$8K
Opioid Claims
22 (3.5% rate)
Antibiotic Claims
120

Patient Demographics

Average Patient Age
79.2 years
Avg HCC Risk Score
2.43
Gender Split
56% female / 44% male
Age Distribution
<65: 11, 65-74: 59, 75-84: 113, 85+: 82

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Phuong Flanagan, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Pantoprazole Sodium
40
Amlodipine Besylate
29
Levofloxacin
26
Prednisone
25
Furosemide
20
Metoprolol Succinate
20
Cephalexin
19
Metoprolol Tartrate
18
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
17
Eliquis
Apixaban
16

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Internal Medicine Physician Overview

How Phuong Flanagan, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

Phuong Flanagan, MD's 623 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Florida

Other clinicians with the same primary specialty enrolled in Florida, drawn from the same CMS NPPES roster as Flanagan.

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Florida medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Internal Medicine Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Phuong Flanagan, MD's specialty?
Phuong Flanagan, MD specializes in Internal Medicine Physician and practices in Fort Myers, Florida. Credentials: MD.
How much does Phuong Flanagan, MD prescribe under Medicare Part D?
In 2023, Phuong Flanagan, MD wrote 623 Medicare Part D claims totaling $37K in drug costs for 265 beneficiaries.
Where is Phuong Flanagan, MD located?
Phuong Flanagan, MD is located at 2675 WINKLER AVE FL 2, Fort Myers, FL, 33901. Phone: (855) 979-5700.
What is Phuong Flanagan, MD's NPI number?
Phuong Flanagan, MD's National Provider Identifier (NPI) is 1356620157, issued on 08/10/2011.
Does Phuong Flanagan, MD prescribe opioids?
Yes, Phuong Flanagan, MD had 22 opioid claims in 2023 with an opioid prescribing rate of 3.5%.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Phuong Flanagan, MD prescribe most often?
Based on 2023 Medicare Part D data, Phuong Flanagan, MD's most frequently prescribed drugs include Pantoprazole Sodium, Amlodipine Besylate, Levofloxacin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Phuong Flanagan, MD accept Medicare?
Phuong Flanagan, MD appears in CMS Medicare data with 623 Part D claims and 265 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Phuong Flanagan, MD's credentials?
Phuong Flanagan, MD's NPI is 1356620157 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology