2026 NPPES data Adolescent Medicine (Family Medicine) Physician NPI 1285770651 M.D.
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THOMAS BRASSFIELD, M.D.

Adolescent Medicine (Family Medicine) Physician in COLORADO SPRINGS, Colorado. 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
3K
Medicare Part D claims · 142 beneficiaries · Adolescent Medicine (Family Medicine) Physician avg: 3K
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

THOMAS BRASSFIELD, M.D. filed 2,522 Medicare Part D claims in 2023 as a Adolescent Medicine (Family Medicine) Physician in COLORADO SPRINGS, Colorado, prescribing 90% generic.

3K
Part D claims, 2023
90%
generic prescribing

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.

THOMAS BRASSFIELD, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

2,522 Top 13% higher than 87% 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-eligible specialty (heuristic — not verified)

THOMAS BRASSFIELD, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about THOMAS BRASSFIELD, M.D.?

Quality data not reported

NPI registry status

Active

Issued 01/30/2007

NPI 1285770651

Primary specialty

Adolescent Medicine (Family Medicine) Physician

Rare

261 US NPIs in this specialty

Medicare Part D claims

2,522 12% vs specialty avg

2023 prescription claims

Specialty avg: 2,881

Specialty distribution in Colorado

How Adolescent Medicine (Family Medicine) Physician compares to other specialties among Colorado providers

Colorado providers

Adolescent Medicine (Family Medicine) Physician share within Colorado

1. Adolescent Medicine (Family Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Adolescent Medicine (Family Medicine) Physician share within Colorado

Specialty board-certification context

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

Quality data not reported
Est. board-certified rate
78%
Adolescent Medicine (Family Medicine) Physician ABMS/AOA estimate

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

0%100%78%
Est. board-certified rate (Adolescent Medicine (Family 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).

THOMAS BRASSFIELD, M.D. appears in the CMS NPPES registry as a Adolescent Medicine (Family Medicine) Physician provider holding M.D. credentials at 3220 N ACADEMY BLVD, COLORADO SPRINGS, CO, 80917, with a listed phone of (719) 574-3600. NPI 1285770651 was issued on 01/30/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BRASSFIELD 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 2,522 prescription claims written by this provider, covering 142 Medicare beneficiaries and totaling roughly $187K in drug spend, split 10% brand-name and 90% generic by claim count, with an opioid prescribing rate of 13.7%. 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.

Adolescent Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 261 enrolled providers across 44 states and an average of 2,881 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

3220 N ACADEMY BLVD
COLORADO SPRINGS, CO 80917

Provider Details

NPI 1285770651
Specialty Adolescent Medicine (Family Medicine) Physician
Credentials M.D.
Gender Male
NPI Issued 01/30/2007

Brand vs generic prescribing mix · Typical

THOMAS BRASSFIELD, M.D. — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 2,522 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.

2,522
Total Claims
$187K
Total Drug Cost
142
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
5,642
Total Day Supply
164,892
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$124K
Generic Drug Cost
$62K
Opioid Claims
346 (13.7% rate)
Antibiotic Claims
85

Patient Demographics

Average Patient Age
74.5 years
Avg HCC Risk Score
0.96
Gender Split
40% female / 60% male
Age Distribution
<65: 15, 65-74: 56, 75-84: 51, 85+: 20

Top Prescribed Drugs (Medicare Part D)

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

What THOMAS BRASSFIELD, M.D. 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
Atorvastatin Calcium
189
Levothyroxine Sodium
132
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
97
Metoprolol Succinate
90
Amlodipine Besylate
84
Oxycodone Hcl
79
Alprazolam
65
Rosuvastatin Calcium
65
Pantoprazole Sodium
63
Simvastatin
59

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

Adolescent Medicine (Family Medicine) Physician Overview

How THOMAS BRASSFIELD, M.D. fits within the Adolescent Medicine (Family Medicine) Physician landscape nationally.

261
Adolescent Medicine (Family Medicine) Physician Providers in US
44
States with Adolescent Medicine (Family Medicine) Physician
2,881
Avg Claims per Provider

THOMAS BRASSFIELD, M.D.'s 2,522 claims are below the specialty average of 2,881.

Nearby Adolescent Medicine (Family Medicine) Physician Providers in Colorado

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

Compare Adolescent Medicine (Family Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is THOMAS BRASSFIELD, M.D.'s specialty?
THOMAS BRASSFIELD, M.D. specializes in Adolescent Medicine (Family Medicine) Physician and practices in COLORADO SPRINGS, Colorado. Credentials: M.D..
How much does THOMAS BRASSFIELD, M.D. prescribe under Medicare Part D?
In 2023, THOMAS BRASSFIELD, M.D. wrote 2,522 Medicare Part D claims totaling $187K in drug costs for 142 beneficiaries.
Where is THOMAS BRASSFIELD, M.D. located?
THOMAS BRASSFIELD, M.D. is located at 3220 N ACADEMY BLVD, COLORADO SPRINGS, CO, 80917. Phone: (719) 574-3600.
What is THOMAS BRASSFIELD, M.D.'s NPI number?
THOMAS BRASSFIELD, M.D.'s National Provider Identifier (NPI) is 1285770651, issued on 01/30/2007.
Does THOMAS BRASSFIELD, M.D. prescribe more brand-name or generic drugs?
THOMAS BRASSFIELD, M.D.'s prescribing is 10% brand-name and 90% generic drugs by claim count, with $124K in brand drug costs.
Does THOMAS BRASSFIELD, M.D. prescribe opioids?
Yes, THOMAS BRASSFIELD, M.D. had 346 opioid claims in 2023 with an opioid prescribing rate of 13.7%.
How many Adolescent Medicine (Family Medicine) Physician providers are there in the US?
There are 261 Adolescent Medicine (Family Medicine) Physician providers across 44 states in the US. The average Adolescent Medicine (Family Medicine) Physician provider writes 2,881 Medicare Part D claims per year.
What drugs does THOMAS BRASSFIELD, M.D. prescribe most often?
Based on 2023 Medicare Part D data, THOMAS BRASSFIELD, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Oxycodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does THOMAS BRASSFIELD, M.D. accept Medicare?
THOMAS BRASSFIELD, M.D. appears in CMS Medicare data with 2,522 Part D claims and 142 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify THOMAS BRASSFIELD, M.D.'s credentials?
THOMAS BRASSFIELD, M.D.'s NPI is 1285770651 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