2026 NPPES data Internal Medicine Physician NPI 1164749354 M.D.
Verify on CMS →

STEPHEN BELL, M.D.

Internal Medicine Physician in BIRMINGHAM, Alabama. 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
13K
Medicare Part D claims · 940 beneficiaries · Internal 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 reveals: STEPHEN BELL, M.D. is a Internal Medicine Physician ([object Object]) practicing in BIRMINGHAM, Alabama with a Medicare Part D prescribing footprint of 13K claims across 940 beneficiaries — 10% brand-name prescribing .

What stands out: STEPHEN BELL, M.D. filed 12,839 Medicare Part D claims in 2023 across BIRMINGHAM, Alabama. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

STEPHEN BELL, 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).

STEPHEN BELL, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 04/27/2010

NPI 1164749354

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

12,839 373% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Alabama

How Internal Medicine Physician compares to other specialties among Alabama providers

Alabama providers

Internal Medicine Physician share within Alabama

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Internal 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 BELL, M.D. is a Internal Medicine Physician provider practicing in BIRMINGHAM, Alabama, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1164749354. 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 BELL, M.D. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D. credentials at 619 19TH ST S, BIRMINGHAM, AL, 35249, with a listed phone of (205) 934-9666. NPI 1164749354 was issued on 04/27/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BELL 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 12,839 prescription claims written by this provider, covering 940 Medicare beneficiaries and totaling roughly $1.1 million in drug spend, split 10% brand-name and 90% generic by claim count, with an opioid prescribing rate of 2.4%. 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.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

619 19TH ST S
BIRMINGHAM, AL 35249

Provider Details

NPI 1164749354
Specialty Internal Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 04/27/2010

Hospital and facility affiliations

Facilities where STEPHEN BELL, 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.

UNIVERSITY OF ALABAMA HEALTH SERVICES FOUNDATION, PC
HOOVER, AL

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

Brand vs generic prescribing mix · Typical

STEPHEN BELL, M.D. — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 12,839 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.

12,839
Total Claims
$1.1M
Total Drug Cost
940
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
29,537
Total Day Supply
863,100
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$797K
Generic Drug Cost
$297K
Opioid Claims
309 (2.4% rate)
Antibiotic Claims
175

Patient Demographics

Average Patient Age
72.0 years
Avg HCC Risk Score
1.15
Gender Split
45% female / 55% male
Age Distribution
<65: 118, 65-74: 457, 75-84: 286, 85+: 79

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
881
Amlodipine Besylate
777
Losartan Potassium
421
Hydrochlorothiazide
323
Levothyroxine Sodium
318
Pravastatin Sodium
288
Trazodone Hcl
275
Lisinopril
258
Omeprazole
257
Metformin Hcl
253

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

Internal Medicine Physician Overview

How STEPHEN BELL, M.D. fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

STEPHEN BELL, M.D.'s 12,839 claims are above the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Alabama

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

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

Frequently Asked Questions

What is STEPHEN BELL, M.D.'s specialty?
STEPHEN BELL, M.D. specializes in Internal Medicine Physician and practices in BIRMINGHAM, Alabama. Credentials: M.D..
How much does STEPHEN BELL, M.D. prescribe under Medicare Part D?
In 2023, STEPHEN BELL, M.D. wrote 12,839 Medicare Part D claims totaling $1.1M in drug costs for 940 beneficiaries.
Where is STEPHEN BELL, M.D. located?
STEPHEN BELL, M.D. is located at 619 19TH ST S, BIRMINGHAM, AL, 35249. Phone: (205) 934-9666.
What is STEPHEN BELL, M.D.'s NPI number?
STEPHEN BELL, M.D.'s National Provider Identifier (NPI) is 1164749354, issued on 04/27/2010.
Does STEPHEN BELL, M.D. prescribe more brand-name or generic drugs?
STEPHEN BELL, M.D.'s prescribing is 10% brand-name and 90% generic drugs by claim count, with $797K in brand drug costs.
Does STEPHEN BELL, M.D. prescribe opioids?
Yes, STEPHEN BELL, M.D. had 309 opioid claims in 2023 with an opioid prescribing rate of 2.4%.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does STEPHEN BELL, M.D. prescribe most often?
Based on 2023 Medicare Part D data, STEPHEN BELL, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does STEPHEN BELL, M.D. accept Medicare?
STEPHEN BELL, M.D. appears in CMS Medicare data with 12,839 Part D claims and 940 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify STEPHEN BELL, M.D.'s credentials?
STEPHEN BELL, M.D.'s NPI is 1164749354 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