2026 NPPES data Hematology & Oncology Physician NPI 1316181241 MD
Verify on CMS →

GRANT WILLIAMS, MD

Hematology & Oncology 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
395
Medicare Part D claims · 79 beneficiaries · Hematology & Oncology Physician avg: 847
Industry payments
$56.6K
157 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

GRANT WILLIAMS, MD filed 395 Medicare Part D claims in 2023 as a Hematology & Oncology Physician in BIRMINGHAM, Alabama.

395
Part D claims, 2023
Likely
board-certified (heuristic)

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.

GRANT WILLIAMS, MD's Medicare Part D volume vs every U.S. prescriber

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

395 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. 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 certification likely (heuristic — not verified)

GRANT WILLIAMS, 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).

What does the federal data show about GRANT WILLIAMS, MD?

Quality data not reported

NPI registry status

Active

Issued 04/22/2009

NPI 1316181241

Primary specialty

Hematology & Oncology Physician

Mid-sized

11,215 US NPIs in this specialty

Medicare Part D claims

395 53% vs specialty avg

2023 prescription claims

Specialty avg: 847

Specialty distribution in Alabama

How Hematology & Oncology Physician compares to other specialties among Alabama providers

Alabama providers

Hematology & Oncology Physician share within Alabama

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

Specialty board-certification context

Estimated specialty board-certified rate — Hematology & Oncology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Hematology & Oncology Physician ABMS/AOA estimate

Est. board-certified rate (Hematology & Oncology Physician) — ABMS / AOA estimate

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

GRANT WILLIAMS, MD appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding MD credentials at 2000 6TH AVE S, BIRMINGHAM, AL, 35233, with a listed phone of (205) 934-9999. NPI 1316181241 was issued on 04/22/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WILLIAMS 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 395 prescription claims written by this provider, covering 79 Medicare beneficiaries and totaling roughly $211K in drug spend, with an opioid prescribing rate of 18.2%. 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.

Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,215 enrolled providers across 54 states and an average of 847 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

2000 6TH AVE S
BIRMINGHAM, AL 35233

Provider Details

NPI 1316181241
Specialty Hematology & Oncology Physician
Credentials MD
Gender Male
NPI Issued 04/22/2009

Hospital and facility affiliations

Facilities where GRANT WILLIAMS, 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.

DCH HEALTHCARE AUTHORITY
TUSCALOOSA, 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).

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 GRANT WILLIAMS, MD. Source: openpaymentsdata.cms.gov.

Total received

$56.6K

Largest payer

Takeda Pharmaceuticals U.S.A., 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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

395
Total Claims
$211K
Total Drug Cost
79
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
413
Total Day Supply
8,773
Generic Drug Cost
$110K
Opioid Claims
72 (18.2% rate)
Antibiotic Claims
17

Patient Demographics

Average Patient Age
71.6 years
Avg HCC Risk Score
2.29
Gender Split
57% female / 43% male

Top Prescribed Drugs (Medicare Part D)

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

What GRANT WILLIAMS, MD 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
Ondansetron Hcl
58
Prochlorperazine Maleate
42
Oxycodone Hcl
21
Eliquis
Apixaban
16
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
15
Amlodipine Besylate
12
Creon
Lipase/Protease/Amylase
12
Baclofen
11
Imatinib Mesylate
11

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

Hematology & Oncology Physician Overview

How GRANT WILLIAMS, MD fits within the Hematology & Oncology Physician landscape nationally.

11,215
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider

GRANT WILLIAMS, MD's 395 claims are below the specialty average of 847.

Nearby Hematology & Oncology Physician Providers in Alabama

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

Compare Hematology & Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is GRANT WILLIAMS, MD's specialty?
GRANT WILLIAMS, MD specializes in Hematology & Oncology Physician and practices in BIRMINGHAM, Alabama. Credentials: MD.
How much does GRANT WILLIAMS, MD prescribe under Medicare Part D?
In 2023, GRANT WILLIAMS, MD wrote 395 Medicare Part D claims totaling $211K in drug costs for 79 beneficiaries.
Where is GRANT WILLIAMS, MD located?
GRANT WILLIAMS, MD is located at 2000 6TH AVE S, BIRMINGHAM, AL, 35233. Phone: (205) 934-9999.
What is GRANT WILLIAMS, MD's NPI number?
GRANT WILLIAMS, MD's National Provider Identifier (NPI) is 1316181241, issued on 04/22/2009.
Does GRANT WILLIAMS, MD prescribe opioids?
Yes, GRANT WILLIAMS, MD had 72 opioid claims in 2023 with an opioid prescribing rate of 18.2%.
How many Hematology & Oncology Physician providers are there in the US?
There are 11,215 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
What drugs does GRANT WILLIAMS, MD prescribe most often?
Based on 2023 Medicare Part D data, GRANT WILLIAMS, MD's most frequently prescribed drugs include Ondansetron Hcl, Prochlorperazine Maleate, Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GRANT WILLIAMS, MD accept Medicare?
GRANT WILLIAMS, MD appears in CMS Medicare data with 395 Part D claims and 79 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GRANT WILLIAMS, MD's credentials?
GRANT WILLIAMS, MD's NPI is 1316181241 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