2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1720290687 M.D.
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MARGARET CROOK, M.D.

Endocrinology, Diabetes & Metabolism Physician in CHARLOTTESVILLE, 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
4K
Medicare Part D claims · 472 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Generic prescribing
56%
generic claims · 44% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
79.3949/100
▼ 4 pts below national avg 83.1 · [object Object]

What the federal data shows

MARGARET CROOK, M.D. reported a CMS MIPS final score of 79.3949/100 — below the 83.1 national average — and filed 3,752 Medicare Part D claims in 2023.

79.3949/100
MIPS score · -4 vs avg
4K
Part D claims, 2023
56%
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.

MARGARET CROOK, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

79 30th percentile higher than 30% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

MARGARET CROOK, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 MARGARET CROOK, M.D.?

Near national average

NPI registry status

Active

Issued 05/04/2007

NPI 1720290687

Primary specialty

Endocrinology, Diabetes & Metabolism Physician

Mid-sized

7,852 US NPIs in this specialty

Medicare Part D claims

3,752 42% vs specialty avg

2023 prescription claims

Specialty avg: 2,639

MIPS final score

79.3949/100 3.7050999999999874% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Virginia

How Endocrinology, Diabetes & Metabolism Physician compares to other specialties among Virginia providers

Virginia providers

Endocrinology, Diabetes & Metabolism Physician share within Virginia

1. Endocrinology, Diabetes & Metabolism Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Endocrinology, Diabetes & Metabolism Physician share within Virginia

Medicare quality performance — MIPS

MARGARET CROOK, M.D.'s 2023 MIPS final score plotted against the Endocrinology, Diabetes & Metabolism Physician national average

Near national average
MIPS Final Score
79.3949/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Endocrinology, Diabetes & Metabolism Physician) — 79.3949/100 vs national avg 83.1

0%100%National avg83%79.4%
MIPS final score (Endocrinology, Diabetes & Metabolism Physician) — 79.3949/100 vs national avg 83.1

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).

MARGARET CROOK, M.D. appears in the CMS NPPES registry as a Endocrinology, Diabetes & Metabolism Physician provider holding M.D. credentials at 183 SPOTNAP RD STE A, CHARLOTTESVILLE, VA, 22911, with a listed phone of (434) 293-7811. NPI 1720290687 was issued on 05/04/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CROOK 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 3,752 prescription claims written by this provider, covering 472 Medicare beneficiaries and totaling roughly $1.6 million in drug spend, split 44% brand-name and 56% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.3949/100 for the 2023 performance year (Quality 73.6607, Cost 57.6556), compared with the national average of 83.1.

Endocrinology, Diabetes & Metabolism Physician is a mid-sized specialty nationwide, with 7,852 enrolled providers across 54 states and an average of 2,639 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

183 SPOTNAP RD STE A
CHARLOTTESVILLE, VA 22911

Provider Details

NPI 1720290687
Specialty Endocrinology, Diabetes & Metabolism Physician
Credentials M.D.
Gender Female
NPI Issued 05/04/2007

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

79.3949
Final Score
Avg: 83.1
73.6607
Quality
57.6556
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where MARGARET CROOK, 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 VIRGINIA PHYSICIANS GROUP
CULPEPER, VA

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 · Above average

MARGARET CROOK, M.D. — brand share 44.0%
Specialty average (est.)

44% brand-name claims vs 56% generic, on 3,752 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.

3,752
Total Claims
$1.6M
Total Drug Cost
472
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
8,759
Total Day Supply
260,233
Brand vs Generic
44% brand / 56% generic
Brand Drug Cost
$1.4M
Generic Drug Cost
$49K

Patient Demographics

Average Patient Age
71.5 years
Avg HCC Risk Score
1.38
Gender Split
70% female / 30% male
Age Distribution
<65: 53, 65-74: 255, 75-84: 135, 85+: 29

Top Prescribed Drugs (Medicare Part D)

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

What MARGARET CROOK, 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
Levothyroxine Sodium
442
Ozempic
Semaglutide
183
Alendronate Sodium
181
Metformin Hcl Er
Metformin Hcl
172
Atorvastatin Calcium
116
Jardiance
Empagliflozin
112
Trulicity
Dulaglutide
111
Synthroid
Levothyroxine Sodium
105
Metformin Hcl
99
Humalog Kwikpen U-100
Insulin Lispro
95

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

Endocrinology, Diabetes & Metabolism Physician Overview

How MARGARET CROOK, M.D. fits within the Endocrinology, Diabetes & Metabolism Physician landscape nationally.

7,852
Endocrinology, Diabetes & Metabolism Physician Providers in US
54
States with Endocrinology, Diabetes & Metabolism Physician
2,639
Avg Claims per Provider

MARGARET CROOK, M.D.'s 3,752 claims are above the specialty average of 2,639.

Nearby Endocrinology, Diabetes & Metabolism Physician Providers in Virginia

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

Compare Endocrinology, Diabetes & Metabolism Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARGARET CROOK, M.D.'s specialty?
MARGARET CROOK, M.D. specializes in Endocrinology, Diabetes & Metabolism Physician and practices in CHARLOTTESVILLE, Virginia. Credentials: M.D..
How much does MARGARET CROOK, M.D. prescribe under Medicare Part D?
In 2023, MARGARET CROOK, M.D. wrote 3,752 Medicare Part D claims totaling $1.6M in drug costs for 472 beneficiaries.
What is MARGARET CROOK, M.D.'s Medicare quality score?
MARGARET CROOK, M.D. has a CMS MIPS Final Score of 79.3949/100 (Quality: 73.6607, Cost: 57.6556). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MARGARET CROOK, M.D. located?
MARGARET CROOK, M.D. is located at 183 SPOTNAP RD STE A, CHARLOTTESVILLE, VA, 22911. Phone: (434) 293-7811.
What is MARGARET CROOK, M.D.'s NPI number?
MARGARET CROOK, M.D.'s National Provider Identifier (NPI) is 1720290687, issued on 05/04/2007.
Does MARGARET CROOK, M.D. prescribe more brand-name or generic drugs?
MARGARET CROOK, M.D.'s prescribing is 44% brand-name and 56% generic drugs by claim count, with $1.4M in brand drug costs.
How many Endocrinology, Diabetes & Metabolism Physician providers are there in the US?
There are 7,852 Endocrinology, Diabetes & Metabolism Physician providers across 54 states in the US. The average Endocrinology, Diabetes & Metabolism Physician provider writes 2,639 Medicare Part D claims per year.
What drugs does MARGARET CROOK, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MARGARET CROOK, M.D.'s most frequently prescribed drugs include Levothyroxine Sodium, Ozempic, Alendronate Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARGARET CROOK, M.D. accept Medicare?
MARGARET CROOK, M.D. appears in CMS Medicare data with 3,752 Part D claims and 472 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARGARET CROOK, M.D.'s credentials?
MARGARET CROOK, M.D.'s NPI is 1720290687 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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