2026 NPPES data Gynecology Physician NPI 1588291025 MD
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CAROLINE BULGER, MD

Gynecology Physician in KNOXVILLE, Tennessee. 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
239
Medicare Part D claims · 66 beneficiaries · Gynecology Physician avg: 295
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$83.1
4 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

CAROLINE BULGER, MD filed 239 Medicare Part D claims in 2023 as a Gynecology Physician in KNOXVILLE, Tennessee, prescribing 83% generic.

239
Part D claims, 2023
83%
generic prescribing
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.

CAROLINE BULGER, MD's Medicare Part D volume vs every U.S. prescriber

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

239 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 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)

CAROLINE BULGER, 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 CAROLINE BULGER, MD?

Quality data not reported

NPI registry status

Active

Issued 03/25/2020

NPI 1588291025

Primary specialty

Gynecology Physician

Niche

3,902 US NPIs in this specialty

Medicare Part D claims

239 19% vs specialty avg

2023 prescription claims

Specialty avg: 295

Specialty distribution in Tennessee

How Gynecology Physician compares to other specialties among Tennessee providers

Tennessee providers

Gynecology Physician share within Tennessee

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

Specialty board-certification context

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

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

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

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

CAROLINE BULGER, MD is a Gynecology Physician provider practicing in KNOXVILLE, Tennessee, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1588291025. 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.

CAROLINE BULGER, MD appears in the CMS NPPES registry as a Gynecology Physician provider holding MD credentials at 10031 SHERRILL BLVD, KNOXVILLE, TN, 37932, with a listed phone of (865) 540-1650. NPI 1588291025 was issued on 03/25/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BULGER 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 239 prescription claims written by this provider, covering 66 Medicare beneficiaries and totaling roughly $18K in drug spend, split 17% brand-name and 83% generic by claim count, with an opioid prescribing rate of 9.6%. 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.

Gynecology Physician is a narrow specialty nationwide, with 3,902 enrolled providers across 53 states and an average of 295 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

10031 SHERRILL BLVD
KNOXVILLE, TN 37932

Provider Details

NPI 1588291025
Specialty Gynecology Physician
Credentials MD
Gender Female
NPI Issued 03/25/2020

Hospital and facility affiliations

Facilities where CAROLINE BULGER, 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.

CONTEMPORARY WOMENS HEALTH PLLC
KNOXVILLE, TN

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

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for CAROLINE BULGER, MD. Source: openpaymentsdata.cms.gov.

Total received

$83

Largest payer

Exeltis, USA Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Typical

CAROLINE BULGER, MD — brand share 17.0%
Specialty average (est.)

17% brand-name claims vs 83% generic, on 239 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

239
Total Claims
$18K
Total Drug Cost
66
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
273
Total Day Supply
3,640
Brand vs Generic
17% brand / 83% generic
Brand Drug Cost
$15K
Generic Drug Cost
$3K
Opioid Claims
23 (9.6% rate)
Antibiotic Claims
51

Patient Demographics

Average Patient Age
66.2 years
Avg HCC Risk Score
1.61
Gender Split
100% female / 0% male
Age Distribution
<65: 25, 65-74: 23, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Ondansetron Odt
Ondansetron
27
Gabapentin
23
Celecoxib
22
Methocarbamol
21
Oxycodone Hcl
19
Cephalexin
17
Naloxone Hcl
16
Premarin
"Estrogens
N/A

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

Gynecology Physician Overview

How CAROLINE BULGER, MD fits within the Gynecology Physician landscape nationally.

3,902
Gynecology Physician Providers in US
53
States with Gynecology Physician
295
Avg Claims per Provider

CAROLINE BULGER, MD's 239 claims are below the specialty average of 295.

Nearby Gynecology Physician Providers in Tennessee

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

Compare Gynecology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is CAROLINE BULGER, MD's specialty?
CAROLINE BULGER, MD specializes in Gynecology Physician and practices in KNOXVILLE, Tennessee. Credentials: MD.
How much does CAROLINE BULGER, MD prescribe under Medicare Part D?
In 2023, CAROLINE BULGER, MD wrote 239 Medicare Part D claims totaling $18K in drug costs for 66 beneficiaries.
Where is CAROLINE BULGER, MD located?
CAROLINE BULGER, MD is located at 10031 SHERRILL BLVD, KNOXVILLE, TN, 37932. Phone: (865) 540-1650.
What is CAROLINE BULGER, MD's NPI number?
CAROLINE BULGER, MD's National Provider Identifier (NPI) is 1588291025, issued on 03/25/2020.
Does CAROLINE BULGER, MD prescribe more brand-name or generic drugs?
CAROLINE BULGER, MD's prescribing is 17% brand-name and 83% generic drugs by claim count, with $15K in brand drug costs.
Does CAROLINE BULGER, MD prescribe opioids?
Yes, CAROLINE BULGER, MD had 23 opioid claims in 2023 with an opioid prescribing rate of 9.6%.
How many Gynecology Physician providers are there in the US?
There are 3,902 Gynecology Physician providers across 53 states in the US. The average Gynecology Physician provider writes 295 Medicare Part D claims per year.
What drugs does CAROLINE BULGER, MD prescribe most often?
Based on 2023 Medicare Part D data, CAROLINE BULGER, MD's most frequently prescribed drugs include Ondansetron Odt, Gabapentin, Celecoxib. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CAROLINE BULGER, MD accept Medicare?
CAROLINE BULGER, MD appears in CMS Medicare data with 239 Part D claims and 66 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CAROLINE BULGER, MD's credentials?
CAROLINE BULGER, MD's NPI is 1588291025 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