2026 NPPES data Family Medicine Physician NPI 1245363993 MD
Verify on CMS →

STEPHEN ADAMS, MD

Family Medicine Physician in SPRINGFIELD, Missouri. 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
6K
Medicare Part D claims · 182 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
69%
generic claims · 31% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$153.0K
282 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: STEPHEN ADAMS, MD is a Family Medicine Physician ([object Object]) practicing in SPRINGFIELD, Missouri with a Medicare Part D prescribing footprint of 6K claims across 182 beneficiaries — 31% brand-name prescribing . Industry payments of $153.0K across 282 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: STEPHEN ADAMS, MD filed 5,606 Medicare Part D claims in 2023 across SPRINGFIELD, Missouri. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

STEPHEN ADAMS, 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).

STEPHEN ADAMS, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 03/13/2007

NPI 1245363993

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

5,606 64% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Missouri

How Family Medicine Physician compares to other specialties among Missouri providers

Missouri providers

Family Medicine Physician share within Missouri

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

Specialty board-certification context

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

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

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

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

STEPHEN ADAMS, MD is a Family Medicine Physician provider practicing in SPRINGFIELD, Missouri, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1245363993. 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.

STEPHEN ADAMS, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 3525 S. NATIONAL AVE, SPRINGFIELD, MO, 65807, with a listed phone of (417) 269-9950. NPI 1245363993 was issued on 03/13/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ADAMS 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 5,606 prescription claims written by this provider, covering 182 Medicare beneficiaries and totaling roughly $5.0 million in drug spend, split 31% brand-name and 69% generic by claim count, with an opioid prescribing rate of 1.5%. 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

3525 S. NATIONAL AVE
SPRINGFIELD, MO 65807

Provider Details

NPI 1245363993
Specialty Family Medicine Physician
Credentials MD
Gender Male
NPI Issued 03/13/2007

Hospital and facility affiliations

Facilities where STEPHEN ADAMS, 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.

AIDS PROJECT OF THE OZARKS
SPRINGFIELD, MO

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 STEPHEN ADAMS, MD. Source: openpaymentsdata.cms.gov.

Total received

$153.0K

Largest payer

ViiV Healthcare Company

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 · Above average

STEPHEN ADAMS, MD — brand share 31.0%
Specialty average (est.)

31% brand-name claims vs 69% generic, on 5,606 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.

5,606
Total Claims
$5.0M
Total Drug Cost
182
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,322
Total Day Supply
186,512
Brand vs Generic
31% brand / 69% generic
Brand Drug Cost
$4.9M
Generic Drug Cost
$120K
Opioid Claims
83 (1.5% rate)
Antibiotic Claims
36

Patient Demographics

Average Patient Age
60.8 years
Avg HCC Risk Score
1.72
Gender Split
18% female / 82% male
Age Distribution
<65: 107, 65-74: 68, 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
Biktarvy
Bictegrav/Emtricit/Tenofov Ala
406
Dovato
Dolutegravir Sodium/Lamivudine
262
Atorvastatin Calcium
243
Rosuvastatin Calcium
241
Montelukast Sodium
191
Omeprazole
147
Tivicay
Dolutegravir Sodium
129
Lisinopril
119
Losartan Potassium
116
Fluticasone Propionate
110

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

Family Medicine Physician Overview

How STEPHEN ADAMS, MD fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

STEPHEN ADAMS, MD's 5,606 claims are above the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Missouri

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

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

Frequently Asked Questions

What is STEPHEN ADAMS, MD's specialty?
STEPHEN ADAMS, MD specializes in Family Medicine Physician and practices in SPRINGFIELD, Missouri. Credentials: MD.
How much does STEPHEN ADAMS, MD prescribe under Medicare Part D?
In 2023, STEPHEN ADAMS, MD wrote 5,606 Medicare Part D claims totaling $5.0M in drug costs for 182 beneficiaries.
Where is STEPHEN ADAMS, MD located?
STEPHEN ADAMS, MD is located at 3525 S. NATIONAL AVE, SPRINGFIELD, MO, 65807. Phone: (417) 269-9950.
What is STEPHEN ADAMS, MD's NPI number?
STEPHEN ADAMS, MD's National Provider Identifier (NPI) is 1245363993, issued on 03/13/2007.
Does STEPHEN ADAMS, MD prescribe more brand-name or generic drugs?
STEPHEN ADAMS, MD's prescribing is 31% brand-name and 69% generic drugs by claim count, with $4.9M in brand drug costs.
Does STEPHEN ADAMS, MD prescribe opioids?
Yes, STEPHEN ADAMS, MD had 83 opioid claims in 2023 with an opioid prescribing rate of 1.5%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does STEPHEN ADAMS, MD prescribe most often?
Based on 2023 Medicare Part D data, STEPHEN ADAMS, MD's most frequently prescribed drugs include Biktarvy, Dovato, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does STEPHEN ADAMS, MD accept Medicare?
STEPHEN ADAMS, MD appears in CMS Medicare data with 5,606 Part D claims and 182 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify STEPHEN ADAMS, MD's credentials?
STEPHEN ADAMS, MD's NPI is 1245363993 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