2026 NPPES data Adolescent Medicine (Internal Medicine) Physician NPI 1558329979 M.D
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SHAHAB AHMAD, M.D

Adolescent Medicine (Internal Medicine) Physician in RICHARDSON, Texas. 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
2K
Medicare Part D claims · 174 beneficiaries · Adolescent Medicine (Internal Medicine) Physician avg: 3K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$13.61
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: SHAHAB AHMAD, M.D is a Adolescent Medicine (Internal Medicine) Physician ([object Object]) practicing in RICHARDSON, Texas with a Medicare Part D prescribing footprint of 2K claims across 174 beneficiaries — 12% brand-name prescribing . Industry payments of $13.61 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: SHAHAB AHMAD, M.D filed 1,983 Medicare Part D claims in 2023 across RICHARDSON, Texas. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

SHAHAB AHMAD, 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).

SHAHAB AHMAD, M.D at a glance

Quality data not reported

NPI registry status

Active

Issued 05/03/2006

NPI 1558329979

Primary specialty

Adolescent Medicine (Internal Medicine) Physician

Rare

377 US NPIs in this specialty

Medicare Part D claims

1,983 39% vs specialty avg

2023 prescription claims

Specialty avg: 3,242

Specialty distribution in Texas

How Adolescent Medicine (Internal Medicine) Physician compares to other specialties among Texas providers

Texas providers

Adolescent Medicine (Internal Medicine) Physician share within Texas

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

Specialty board-certification context

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

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

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

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

SHAHAB AHMAD, M.D is a Adolescent Medicine (Internal Medicine) Physician provider practicing in RICHARDSON, Texas, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D. NPI: 1558329979. 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.

SHAHAB AHMAD, M.D appears in the CMS NPPES registry as a Adolescent Medicine (Internal Medicine) Physician provider holding M.D credentials at 2100 N.COLLINS BLVD, RICHARDSON, TX, 75080, with a listed phone of (972) 235-2304. NPI 1558329979 was issued on 05/03/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AHMAD 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 1,983 prescription claims written by this provider, covering 174 Medicare beneficiaries and totaling roughly $232K in drug spend, split 12% brand-name and 88% generic by claim count. 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 (Internal Medicine) Physician is a narrow specialty nationwide, with 377 enrolled providers across 46 states and an average of 3,242 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

2100 N.COLLINS BLVD
RICHARDSON, TX 75080

Provider Details

NPI 1558329979
Specialty Adolescent Medicine (Internal Medicine) Physician
Credentials M.D
Gender Male
NPI Issued 05/03/2006

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 SHAHAB AHMAD, M.D. Source: openpaymentsdata.cms.gov.

Total received

$14

Largest payer

ABBVIE INC.

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.

License & disciplinary context — Texas TMB 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~77K Texas medical licensees in 2023 — they are NOT specific to SHAHAB AHMAD, M.D. To verify SHAHAB AHMAD, M.D's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

SHAHAB AHMAD, M.D — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 1,983 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.

1,983
Total Claims
$232K
Total Drug Cost
174
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,718
Total Day Supply
138,846
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$198K
Generic Drug Cost
$33K
Antibiotic Claims
66

Patient Demographics

Average Patient Age
74.4 years
Avg HCC Risk Score
1.23
Gender Split
48% female / 52% male

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
162
Metformin Hcl
117
Amlodipine Besylate
115
Losartan Potassium
81
Lisinopril
80
Rosuvastatin Calcium
71
Levothyroxine Sodium
65
Pravastatin Sodium
64
Carvedilol
54
Gabapentin
49

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

Adolescent Medicine (Internal Medicine) Physician Overview

How SHAHAB AHMAD, M.D fits within the Adolescent Medicine (Internal Medicine) Physician landscape nationally.

377
Adolescent Medicine (Internal Medicine) Physician Providers in US
46
States with Adolescent Medicine (Internal Medicine) Physician
3,242
Avg Claims per Provider

SHAHAB AHMAD, M.D's 1,983 claims are below the specialty average of 3,242.

Nearby Adolescent Medicine (Internal Medicine) Physician Providers in Texas

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

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

Frequently Asked Questions

What is SHAHAB AHMAD, M.D's specialty?
SHAHAB AHMAD, M.D specializes in Adolescent Medicine (Internal Medicine) Physician and practices in RICHARDSON, Texas. Credentials: M.D.
How much does SHAHAB AHMAD, M.D prescribe under Medicare Part D?
In 2023, SHAHAB AHMAD, M.D wrote 1,983 Medicare Part D claims totaling $232K in drug costs for 174 beneficiaries.
Where is SHAHAB AHMAD, M.D located?
SHAHAB AHMAD, M.D is located at 2100 N.COLLINS BLVD, RICHARDSON, TX, 75080. Phone: (972) 235-2304.
What is SHAHAB AHMAD, M.D's NPI number?
SHAHAB AHMAD, M.D's National Provider Identifier (NPI) is 1558329979, issued on 05/03/2006.
Does SHAHAB AHMAD, M.D prescribe more brand-name or generic drugs?
SHAHAB AHMAD, M.D's prescribing is 12% brand-name and 88% generic drugs by claim count, with $198K in brand drug costs.
How many Adolescent Medicine (Internal Medicine) Physician providers are there in the US?
There are 377 Adolescent Medicine (Internal Medicine) Physician providers across 46 states in the US. The average Adolescent Medicine (Internal Medicine) Physician provider writes 3,242 Medicare Part D claims per year.
What drugs does SHAHAB AHMAD, M.D prescribe most often?
Based on 2023 Medicare Part D data, SHAHAB AHMAD, M.D's most frequently prescribed drugs include Atorvastatin Calcium, Metformin Hcl, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SHAHAB AHMAD, M.D accept Medicare?
SHAHAB AHMAD, M.D appears in CMS Medicare data with 1,983 Part D claims and 174 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SHAHAB AHMAD, M.D's credentials?
SHAHAB AHMAD, M.D's NPI is 1558329979 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