2026 NPPES data Hematology & Oncology Physician NPI 1558688168 M.D.
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Sandy Anne, M.D.

Hematology & Oncology Physician in Round Rock, Texas.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 11,215 in Hematology & Oncology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
1K
Medicare Part D claims · 229 beneficiaries · Hematology & Oncology Physician avg: 847
Generic prescribing
78%
generic claims · 22% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.1K
7 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Sandy Anne, M.D. filed 1,274 Medicare Part D claims in 2023 as a Hematology & Oncology Physician in Round Rock, Texas, prescribing 78% generic.

1K
Part D claims, 2023
78%
generic prescribing
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.

Sandy Anne, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

1,274 Top 22% higher than 78% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). This entry sits in this band. 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. 2K+: 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)

Sandy Anne, 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).

What does the federal data show about Sandy Anne, M.D.?

Quality data not reported

NPI registry status

Active

Issued 04/23/2010

NPI 1558688168

Primary specialty

Hematology & Oncology Physician

Mid-sized

11,215 US NPIs in this specialty

Medicare Part D claims

1,274 50% vs specialty avg

2023 prescription claims

Specialty avg: 847

Specialty distribution in Texas

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

Texas providers
Behavior Technician - 5.6%Behavior Technician5.6%Student in an Organized Health Care Education/Training Program - 5.1%Student in an Organized Health Care Education/Training Program5.1%Family Nurse Practitioner - 4.5%Family Nurse Practitioner4.5%Professional Counselor - 4.4%Professional Counselor4.4%Pharmacist - 4.4%Pharmacist4.4%Speech-Language Pathologist - 3.9%Speech-Language Pathologist3.9%Hematology & Oncology Physician - 0.1%Hematology & Oncology Physician0.1%
Largest specialties in Texas (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Hematology & Oncology Physician. Verify directly:

How MIPS and board certification work

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).

Sandy Anne, M.D. appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding M.D. credentials at 300 UNIVERSITY BLVD BLDG A, Round Rock, TX, 78665, with a listed phone of (512) 509-0200. NPI 1558688168 was issued on 04/23/2010.

Medicare Part D records for calendar year 2023 show 1,274 prescription claims written by this provider, covering 229 Medicare beneficiaries and totaling roughly $1.9 million in drug spend, split 22% brand-name and 78% generic by claim count, with an opioid prescribing rate of 10.3%.

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

300 UNIVERSITY BLVD BLDG A
Round Rock, TX 78665

Provider Details

NPI 1558688168
Specialty Hematology & Oncology Physician
Credentials M.D.
Gender Female
NPI Issued 04/23/2010

Hospital and facility affiliations

Facilities where Sandy Anne, 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.

Scott And White Clinic
Austin, TX

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 Sandy Anne, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$1.1K

Largest payer

AstraZeneca Pharmaceuticals LP

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 Sandy Anne, M.D.. To verify Sandy Anne, 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

Sandy Anne, M.D. - brand share 22.0%
Hematology & Oncology Physician average

22% brand-name claims vs 78% generic, on 1,274 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.

1,274
Total Claims
$1.9M
Total Drug Cost
229
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,882
Total Day Supply
51,948
Brand vs Generic
22% brand / 78% generic
Brand Drug Cost
$1.7M
Generic Drug Cost
$209K
Opioid Claims
131 (10.3% rate)
Antibiotic Claims
80

Patient Demographics

Average Patient Age
74.6 years
Avg HCC Risk Score
2.14
Gender Split
58% female / 42% male
Age Distribution
<65: 18, 65-74: 94, 75-84: 89, 85+: 28

Top Prescribed Drugs (Medicare Part D)

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

What Sandy Anne, M.D. 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
Eliquis
Apixaban
112
Lorazepam
64
Mirtazapine
60
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
45
Dexamethasone
35
Gabapentin
33
Letrozole
33
Anastrozole
31
Hydroxyurea
31
Prochlorperazine Maleate
31

* 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 Sandy Anne, M.D. 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

Sandy Anne, M.D.'s 1,274 claims are above the specialty average of 847.

Nearby Hematology & Oncology Physician Providers in Texas

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

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

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Texas medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Hematology & Oncology Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Sandy Anne, M.D.'s specialty?
Sandy Anne, M.D. specializes in Hematology & Oncology Physician and practices in Round Rock, Texas. Credentials: M.D..
How much does Sandy Anne, M.D. prescribe under Medicare Part D?
In 2023, Sandy Anne, M.D. wrote 1,274 Medicare Part D claims totaling $1.9M in drug costs for 229 beneficiaries.
Where is Sandy Anne, M.D. located?
Sandy Anne, M.D. is located at 300 UNIVERSITY BLVD BLDG A, Round Rock, TX, 78665. Phone: (512) 509-0200.
What is Sandy Anne, M.D.'s NPI number?
Sandy Anne, M.D.'s National Provider Identifier (NPI) is 1558688168, issued on 04/23/2010.
Does Sandy Anne, M.D. prescribe more brand-name or generic drugs?
Sandy Anne, M.D.'s prescribing is 22% brand-name and 78% generic drugs by claim count, with $1.7M in brand drug costs.
Does Sandy Anne, M.D. prescribe opioids?
Yes, Sandy Anne, M.D. had 131 opioid claims in 2023 with an opioid prescribing rate of 10.3%.
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 Sandy Anne, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Sandy Anne, M.D.'s most frequently prescribed drugs include Eliquis, Lorazepam, Mirtazapine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sandy Anne, M.D. accept Medicare?
Sandy Anne, M.D. appears in CMS Medicare data with 1,274 Part D claims and 229 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sandy Anne, M.D.'s credentials?
Sandy Anne, M.D.'s NPI is 1558688168 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

View source datasets and methodology notes
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

Compiled from official public sources by the PlainDoctor editorial team.