2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1407112550 M.D.
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STEVEN MACK, M.D.

Geriatric Medicine (Internal Medicine) Physician in NEWPORT NEWS, Virginia. 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
10K
Medicare Part D claims · 331 beneficiaries · Geriatric Medicine (Internal Medicine) Physician avg: 4K
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: STEVEN MACK, M.D. is a Geriatric Medicine (Internal Medicine) Physician ([object Object]) practicing in NEWPORT NEWS, Virginia with a Medicare Part D prescribing footprint of 10K claims across 331 beneficiaries — 15% brand-name prescribing .

What stands out: STEVEN MACK, M.D. filed 9,864 Medicare Part D claims in 2023 across NEWPORT NEWS, Virginia. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

STEVEN MACK, 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).

STEVEN MACK, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 04/03/2012

NPI 1407112550

Primary specialty

Geriatric Medicine (Internal Medicine) Physician

Niche

4,161 US NPIs in this specialty

Medicare Part D claims

9,864 122% vs specialty avg

2023 prescription claims

Specialty avg: 4,450

Specialty distribution in Virginia

How Geriatric Medicine (Internal Medicine) Physician compares to other specialties among Virginia providers

Virginia providers

Geriatric Medicine (Internal Medicine) Physician share within Virginia

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

Specialty board-certification context

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

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

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

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

STEVEN MACK, M.D. is a Geriatric Medicine (Internal Medicine) Physician provider practicing in NEWPORT NEWS, Virginia, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1407112550. 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.

STEVEN MACK, M.D. appears in the CMS NPPES registry as a Geriatric Medicine (Internal Medicine) Physician provider holding M.D. credentials at 439 ORIANA RD, NEWPORT NEWS, VA, 23608, with a listed phone of (757) 234-8100. NPI 1407112550 was issued on 04/03/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MACK 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 9,864 prescription claims written by this provider, covering 331 Medicare beneficiaries and totaling roughly $1.2 million in drug spend, split 15% brand-name and 85% generic by claim count, with an opioid prescribing rate of 2.1%. 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.

Geriatric Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 4,161 enrolled providers across 52 states and an average of 4,450 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

439 ORIANA RD
NEWPORT NEWS, VA 23608

Provider Details

NPI 1407112550
Specialty Geriatric Medicine (Internal Medicine) Physician
Credentials M.D.
Gender Male
NPI Issued 04/03/2012

Brand vs generic prescribing mix · Typical

STEVEN MACK, M.D. — brand share 15.0%
Specialty average (est.)

15% brand-name claims vs 85% generic, on 9,864 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.

9,864
Total Claims
$1.2M
Total Drug Cost
331
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
9,982
Total Day Supply
246,378
Brand vs Generic
15% brand / 85% generic
Brand Drug Cost
$855K
Generic Drug Cost
$379K
Opioid Claims
204 (2.1% rate)
Antibiotic Claims
140

Patient Demographics

Average Patient Age
75.6 years
Avg HCC Risk Score
2.88
Gender Split
67% female / 33% male
Age Distribution
<65: 50, 65-74: 113, 75-84: 91, 85+: 77

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
671
Amlodipine Besylate
330
Pantoprazole Sodium
300
Metoprolol Succinate
283
Gabapentin
252
Furosemide
200
Clopidogrel
Clopidogrel Bisulfate
191
Mirtazapine
186
Levothyroxine Sodium
179
Losartan Potassium
177

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

Geriatric Medicine (Internal Medicine) Physician Overview

How STEVEN MACK, M.D. fits within the Geriatric Medicine (Internal Medicine) Physician landscape nationally.

4,161
Geriatric Medicine (Internal Medicine) Physician Providers in US
52
States with Geriatric Medicine (Internal Medicine) Physician
4,450
Avg Claims per Provider

STEVEN MACK, M.D.'s 9,864 claims are above the specialty average of 4,450.

Nearby Geriatric Medicine (Internal Medicine) Physician Providers in Virginia

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

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

Frequently Asked Questions

What is STEVEN MACK, M.D.'s specialty?
STEVEN MACK, M.D. specializes in Geriatric Medicine (Internal Medicine) Physician and practices in NEWPORT NEWS, Virginia. Credentials: M.D..
How much does STEVEN MACK, M.D. prescribe under Medicare Part D?
In 2023, STEVEN MACK, M.D. wrote 9,864 Medicare Part D claims totaling $1.2M in drug costs for 331 beneficiaries.
Where is STEVEN MACK, M.D. located?
STEVEN MACK, M.D. is located at 439 ORIANA RD, NEWPORT NEWS, VA, 23608. Phone: (757) 234-8100.
What is STEVEN MACK, M.D.'s NPI number?
STEVEN MACK, M.D.'s National Provider Identifier (NPI) is 1407112550, issued on 04/03/2012.
Does STEVEN MACK, M.D. prescribe more brand-name or generic drugs?
STEVEN MACK, M.D.'s prescribing is 15% brand-name and 85% generic drugs by claim count, with $855K in brand drug costs.
Does STEVEN MACK, M.D. prescribe opioids?
Yes, STEVEN MACK, M.D. had 204 opioid claims in 2023 with an opioid prescribing rate of 2.1%.
How many Geriatric Medicine (Internal Medicine) Physician providers are there in the US?
There are 4,161 Geriatric Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Internal Medicine) Physician provider writes 4,450 Medicare Part D claims per year.
What drugs does STEVEN MACK, M.D. prescribe most often?
Based on 2023 Medicare Part D data, STEVEN MACK, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Pantoprazole Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does STEVEN MACK, M.D. accept Medicare?
STEVEN MACK, M.D. appears in CMS Medicare data with 9,864 Part D claims and 331 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify STEVEN MACK, M.D.'s credentials?
STEVEN MACK, M.D.'s NPI is 1407112550 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