2026 NPPES data General Practice Physician NPI 1558343319 MD
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JAMES TURNBULL, MD

General Practice Physician in ANTIGO, Wisconsin. 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
804
Medicare Part D claims · 41 beneficiaries · General Practice Physician avg: 3K
What the federal data reveals: JAMES TURNBULL, MD is a General Practice Physician ([object Object]) practicing in ANTIGO, Wisconsin with a Medicare Part D prescribing footprint of 804 claims across 41 beneficiaries .

What stands out: JAMES TURNBULL, MD filed 804 Medicare Part D claims in 2023 across ANTIGO, Wisconsin. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

JAMES TURNBULL, 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).

JAMES TURNBULL, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 11/17/2005

NPI 1558343319

Primary specialty

General Practice Physician

Mid-sized

16,677 US NPIs in this specialty

Medicare Part D claims

804 72% vs specialty avg

2023 prescription claims

Specialty avg: 2,872

Specialty distribution in Wisconsin

How General Practice Physician compares to other specialties among Wisconsin providers

Wisconsin providers

General Practice Physician share within Wisconsin

1. General Practice Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
General Practice Physician share within Wisconsin

Specialty board-certification context

Estimated specialty board-certified rate — General Practice Physician (ABMS / AOA reference)

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

Est. board-certified rate (General Practice Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (General Practice 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).

JAMES TURNBULL, MD is a General Practice Physician provider practicing in ANTIGO, Wisconsin, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1558343319. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

JAMES TURNBULL, MD appears in the CMS NPPES registry as a General Practice Physician provider holding MD credentials at 110 E 5TH AVE, ANTIGO, WI, 54409, with a listed phone of (715) 623-2351. NPI 1558343319 was issued on 11/17/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what TURNBULL 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 804 prescription claims written by this provider, covering 41 Medicare beneficiaries and totaling roughly $92K in drug spend. 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.

General Practice Physician is a mid-sized specialty nationwide, with 16,677 enrolled providers across 56 states and an average of 2,872 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

110 E 5TH AVE
ANTIGO, WI 54409

Provider Details

NPI 1558343319
Specialty General Practice Physician
Credentials MD
Gender Male
NPI Issued 11/17/2005

Hospital and facility affiliations

Facilities where JAMES TURNBULL, 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.

STOCKBRIDGE MUNSEE COMMUNITY
BOWLER, WI

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

Medicare Part D Prescribing Data

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

804
Total Claims
$92K
Total Drug Cost
41
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,514
Total Day Supply
44,419
Generic Drug Cost
$11K

Patient Demographics

Average Patient Age
80.5 years
Avg HCC Risk Score
1.33
Gender Split
54% female / 46% male
Age Distribution
<65: 0, 65-74: 11, 75-84: 13, 85+: 17

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Losartan Potassium
76
Levothyroxine Sodium
65
Amlodipine Besylate
40
Atorvastatin Calcium
28
Duloxetine Hcl
28
Furosemide
27
Montelukast Sodium
26
Rosuvastatin Calcium
26
Metoprolol Succinate
25
Eliquis
Apixaban
24

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

General Practice Physician Overview

How JAMES TURNBULL, MD fits within the General Practice Physician landscape nationally.

16,677
General Practice Physician Providers in US
56
States with General Practice Physician
2,872
Avg Claims per Provider

JAMES TURNBULL, MD's 804 claims are below the specialty average of 2,872.

Nearby General Practice Physician Providers in Wisconsin

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

Compare General Practice Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JAMES TURNBULL, MD's specialty?
JAMES TURNBULL, MD specializes in General Practice Physician and practices in ANTIGO, Wisconsin. Credentials: MD.
How much does JAMES TURNBULL, MD prescribe under Medicare Part D?
In 2023, JAMES TURNBULL, MD wrote 804 Medicare Part D claims totaling $92K in drug costs for 41 beneficiaries.
Where is JAMES TURNBULL, MD located?
JAMES TURNBULL, MD is located at 110 E 5TH AVE, ANTIGO, WI, 54409. Phone: (715) 623-2351.
What is JAMES TURNBULL, MD's NPI number?
JAMES TURNBULL, MD's National Provider Identifier (NPI) is 1558343319, issued on 11/17/2005.
How many General Practice Physician providers are there in the US?
There are 16,677 General Practice Physician providers across 56 states in the US. The average General Practice Physician provider writes 2,872 Medicare Part D claims per year.
What drugs does JAMES TURNBULL, MD prescribe most often?
Based on 2023 Medicare Part D data, JAMES TURNBULL, MD's most frequently prescribed drugs include Losartan Potassium, Levothyroxine Sodium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JAMES TURNBULL, MD accept Medicare?
JAMES TURNBULL, MD appears in CMS Medicare data with 804 Part D claims and 41 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JAMES TURNBULL, MD's credentials?
JAMES TURNBULL, MD's NPI is 1558343319 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