2026 NPPES data Pain Medicine (Physical Medicine & Rehabilitation) Physician NPI 1588777445 M.D.
Verify on CMS →

JOHN NWOFIA, M.D.

Pain Medicine (Physical Medicine & Rehabilitation) Physician in BRENTWOOD, 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
4K
Medicare Part D claims · 729 beneficiaries · Pain Medicine (Physical Medicine & Rehabilitation) Physician avg: 1K
Generic prescribing
98%
generic claims · 2% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$3.3K
98 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

JOHN NWOFIA, M.D. filed 3,943 Medicare Part D claims in 2023 as a Pain Medicine (Physical Medicine & Rehabilitation) Physician in BRENTWOOD, Tennessee, prescribing 98% generic.

4K
Part D claims, 2023
98%
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.

JOHN NWOFIA, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

3,943 Top 9% higher than 91% 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%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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)

JOHN NWOFIA, M.D. 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 JOHN NWOFIA, M.D.?

Quality data not reported

NPI registry status

Active

Issued 08/16/2006

NPI 1588777445

Primary specialty

Pain Medicine (Physical Medicine & Rehabilitation) Physician

Niche

1,626 US NPIs in this specialty

Medicare Part D claims

3,943 181% vs specialty avg

2023 prescription claims

Specialty avg: 1,401

Specialty distribution in Tennessee

How Pain Medicine (Physical Medicine & Rehabilitation) Physician compares to other specialties among Tennessee providers

Tennessee providers

Pain Medicine (Physical Medicine & Rehabilitation) Physician share within Tennessee

1. Pain Medicine (Physical Medicine & Rehabilitation) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Pain Medicine (Physical Medicine & Rehabilitation) Physician share within Tennessee

Specialty board-certification context

Estimated specialty board-certified rate — Pain Medicine (Physical Medicine & Rehabilitation) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Pain Medicine (Physical Medicine & Rehabilitation) Physician ABMS/AOA estimate

Est. board-certified rate (Pain Medicine (Physical Medicine & Rehabilitation) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Pain Medicine (Physical Medicine & Rehabilitation) 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).

JOHN NWOFIA, M.D. is a Pain Medicine (Physical Medicine & Rehabilitation) Physician provider practicing in BRENTWOOD, Tennessee, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1588777445. 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 NWOFIA, M.D. appears in the CMS NPPES registry as a Pain Medicine (Physical Medicine & Rehabilitation) Physician provider holding M.D. credentials at 1805 WILLIAMSON CT, BRENTWOOD, TN, 37027, with a listed phone of (615) 331-5536. NPI 1588777445 was issued on 08/16/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what NWOFIA 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 3,943 prescription claims written by this provider, covering 729 Medicare beneficiaries and totaling roughly $166K in drug spend, split 2% brand-name and 98% generic by claim count, with an opioid prescribing rate of 45.5%. 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.

Pain Medicine (Physical Medicine & Rehabilitation) Physician is a narrow specialty nationwide, with 1,626 enrolled providers across 50 states and an average of 1,401 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

1805 WILLIAMSON CT
BRENTWOOD, TN 37027

Provider Details

NPI 1588777445
Specialty Pain Medicine (Physical Medicine & Rehabilitation) Physician
Credentials M.D.
Gender Male
NPI Issued 08/16/2006

Hospital and facility affiliations

Facilities where JOHN NWOFIA, M.D. 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.

PAIN MEDICINE AND REHABILITATION GROUP PC
NASHVILLE, 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 JOHN NWOFIA, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$3.3K

Largest payer

Abbott Laboratories

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 NWOFIA, M.D. — brand share 2.0%
Specialty average (est.)

2% brand-name claims vs 98% generic, on 3,943 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.

3,943
Total Claims
$166K
Total Drug Cost
729
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,168
Total Day Supply
119,042
Brand vs Generic
2% brand / 98% generic
Brand Drug Cost
$45K
Generic Drug Cost
$120K
Opioid Claims
1,795 (45.5% rate)
Antibiotic Claims
26

Patient Demographics

Average Patient Age
64.0 years
Avg HCC Risk Score
1.87
Gender Split
63% female / 37% male
Age Distribution
<65: 330, 65-74: 298, 75-84: 85, 85+: 16

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
705
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
611
Gabapentin
563
Tizanidine Hcl
391
Pregabalin
243
Oxycodone Hcl
226
Cyclobenzaprine Hcl
149
Morphine Sulfate Er
Morphine Sulfate
108
Methocarbamol
81
Meloxicam
75

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

Pain Medicine (Physical Medicine & Rehabilitation) Physician Overview

How JOHN NWOFIA, M.D. fits within the Pain Medicine (Physical Medicine & Rehabilitation) Physician landscape nationally.

1,626
Pain Medicine (Physical Medicine & Rehabilitation) Physician Providers in US
50
States with Pain Medicine (Physical Medicine & Rehabilitation) Physician
1,401
Avg Claims per Provider

JOHN NWOFIA, M.D.'s 3,943 claims are above the specialty average of 1,401.

Nearby Pain Medicine (Physical Medicine & Rehabilitation) Physician Providers in Tennessee

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

Compare Pain Medicine (Physical Medicine & Rehabilitation) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JOHN NWOFIA, M.D.'s specialty?
JOHN NWOFIA, M.D. specializes in Pain Medicine (Physical Medicine & Rehabilitation) Physician and practices in BRENTWOOD, Tennessee. Credentials: M.D..
How much does JOHN NWOFIA, M.D. prescribe under Medicare Part D?
In 2023, JOHN NWOFIA, M.D. wrote 3,943 Medicare Part D claims totaling $166K in drug costs for 729 beneficiaries.
Where is JOHN NWOFIA, M.D. located?
JOHN NWOFIA, M.D. is located at 1805 WILLIAMSON CT, BRENTWOOD, TN, 37027. Phone: (615) 331-5536.
What is JOHN NWOFIA, M.D.'s NPI number?
JOHN NWOFIA, M.D.'s National Provider Identifier (NPI) is 1588777445, issued on 08/16/2006.
Does JOHN NWOFIA, M.D. prescribe more brand-name or generic drugs?
JOHN NWOFIA, M.D.'s prescribing is 2% brand-name and 98% generic drugs by claim count, with $45K in brand drug costs.
Does JOHN NWOFIA, M.D. prescribe opioids?
Yes, JOHN NWOFIA, M.D. had 1,795 opioid claims in 2023 with an opioid prescribing rate of 45.5%.
How many Pain Medicine (Physical Medicine & Rehabilitation) Physician providers are there in the US?
There are 1,626 Pain Medicine (Physical Medicine & Rehabilitation) Physician providers across 50 states in the US. The average Pain Medicine (Physical Medicine & Rehabilitation) Physician provider writes 1,401 Medicare Part D claims per year.
What drugs does JOHN NWOFIA, M.D. prescribe most often?
Based on 2023 Medicare Part D data, JOHN NWOFIA, M.D.'s most frequently prescribed drugs include Oxycodone-Acetaminophen, Hydrocodone-Acetaminophen, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOHN NWOFIA, M.D. accept Medicare?
JOHN NWOFIA, M.D. appears in CMS Medicare data with 3,943 Part D claims and 729 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOHN NWOFIA, M.D.'s credentials?
JOHN NWOFIA, M.D.'s NPI is 1588777445 with credentials M.D.. 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