2026 NPPES data Hospitalist Physician NPI 1538131933 MD
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JOHN FOWLER, MD

Hospitalist Physician in SPARTANBURG, South Carolina. 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
19K
Medicare Part D claims · 884 beneficiaries · Hospitalist Physician avg: 888
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
96.0864/100
▲ 13 pts above national avg 83.1 · [object Object]
Industry payments
$602.53
35 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: JOHN FOWLER, MD is a Hospitalist Physician ([object Object]) practicing in SPARTANBURG, South Carolina with a Medicare Part D prescribing footprint of 19K claims across 884 beneficiaries — 9% brand-name prescribing . Their CMS MIPS Final Score of 96.0864/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $602.53 across 35 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: JOHN FOWLER, MD reported a CMS MIPS final score of 96.0864 out of 100, above the 83.1 national average, and filed 19,097 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

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

JOHN FOWLER, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 02/02/2006

NPI 1538131933

Primary specialty

Hospitalist Physician

Mid-sized

16,825 US NPIs in this specialty

Medicare Part D claims

19,097 2051% vs specialty avg

2023 prescription claims

Specialty avg: 888

MIPS final score

96.0864/100 12.986400000000003% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in South Carolina

How Hospitalist Physician compares to other specialties among South Carolina providers

South Carolina providers

Hospitalist Physician share within South Carolina

1. Hospitalist Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Hospitalist Physician share within South Carolina

Medicare quality performance — MIPS

JOHN FOWLER, MD's 2023 MIPS final score plotted against the Hospitalist Physician national average

High performer (top quartile)
MIPS Final Score
96.0864/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Hospitalist Physician) — 96.0864/100 vs national avg 83.1

0%100%National avg83%96.1%
MIPS final score (Hospitalist Physician) — 96.0864/100 vs national avg 83.1

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).

JOHN FOWLER, MD is a Hospitalist Physician provider practicing in SPARTANBURG, South Carolina, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1538131933. 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.

JOHN FOWLER, MD appears in the CMS NPPES registry as a Hospitalist Physician provider holding MD credentials at 1330 BOILING SPRINGS RD STE 2500, SPARTANBURG, SC, 29303, with a listed phone of (864) 585-5433. NPI 1538131933 was issued on 02/02/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FOWLER 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 19,097 prescription claims written by this provider, covering 884 Medicare beneficiaries and totaling roughly $1.3 million in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 8.8%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 96.0864/100 for the 2023 performance year (Quality 92.1728), compared with the national average of 83.1.

Hospitalist Physician is a mid-sized specialty nationwide, with 16,825 enrolled providers across 54 states and an average of 888 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

1330 BOILING SPRINGS RD STE 2500
SPARTANBURG, SC 29303

Provider Details

NPI 1538131933
Specialty Hospitalist Physician
Credentials MD
Gender Male
NPI Issued 02/02/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

96.0864
Final Score
Avg: 83.1
92.1728
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where JOHN FOWLER, 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.

SPARTANBURG MEDICAL CENTER
★★☆☆☆ 2/5
SPARTANBURG, SC
Acute Care Hospitals
CMS CCN: 420007

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 JOHN FOWLER, MD. Source: openpaymentsdata.cms.gov.

Total received

$603

Largest payer

ABBVIE 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 · Generic-heavy

JOHN FOWLER, MD — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 19,097 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.

19,097
Total Claims
$1.3M
Total Drug Cost
884
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
35,226
Total Day Supply
1,000,991
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$965K
Generic Drug Cost
$335K
Opioid Claims
1,677 (8.8% rate)
Antibiotic Claims
754

Patient Demographics

Average Patient Age
71.0 years
Avg HCC Risk Score
1.38
Gender Split
55% female / 45% male
Age Distribution
<65: 170, 65-74: 395, 75-84: 253, 85+: 66

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
858
Lorazepam
691
Alprazolam
629
Levothyroxine Sodium
519
Amlodipine Besylate
515
Atorvastatin Calcium
485
Gabapentin
470
Lisinopril
464
Omeprazole
403
Pantoprazole Sodium
371

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

Hospitalist Physician Overview

How JOHN FOWLER, MD fits within the Hospitalist Physician landscape nationally.

16,825
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider

JOHN FOWLER, MD's 19,097 claims are above the specialty average of 888.

Nearby Hospitalist Physician Providers in South Carolina

Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as FOWLER.

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

Frequently Asked Questions

What is JOHN FOWLER, MD's specialty?
JOHN FOWLER, MD specializes in Hospitalist Physician and practices in SPARTANBURG, South Carolina. Credentials: MD.
How much does JOHN FOWLER, MD prescribe under Medicare Part D?
In 2023, JOHN FOWLER, MD wrote 19,097 Medicare Part D claims totaling $1.3M in drug costs for 884 beneficiaries.
What is JOHN FOWLER, MD's Medicare quality score?
JOHN FOWLER, MD has a CMS MIPS Final Score of 96.0864/100 (Quality: 92.1728). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JOHN FOWLER, MD located?
JOHN FOWLER, MD is located at 1330 BOILING SPRINGS RD STE 2500, SPARTANBURG, SC, 29303. Phone: (864) 585-5433.
What is JOHN FOWLER, MD's NPI number?
JOHN FOWLER, MD's National Provider Identifier (NPI) is 1538131933, issued on 02/02/2006.
Does JOHN FOWLER, MD prescribe more brand-name or generic drugs?
JOHN FOWLER, MD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $965K in brand drug costs.
Does JOHN FOWLER, MD prescribe opioids?
Yes, JOHN FOWLER, MD had 1,677 opioid claims in 2023 with an opioid prescribing rate of 8.8%.
How many Hospitalist Physician providers are there in the US?
There are 16,825 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does JOHN FOWLER, MD prescribe most often?
Based on 2023 Medicare Part D data, JOHN FOWLER, MD's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Lorazepam, Alprazolam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOHN FOWLER, MD accept Medicare?
JOHN FOWLER, MD appears in CMS Medicare data with 19,097 Part D claims and 884 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOHN FOWLER, MD's credentials?
JOHN FOWLER, MD's NPI is 1538131933 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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