2026 NPPES data Specialist NPI 1659324465 MD
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DONOVAN POLACK, MD

Specialist in FLORISSANT, Missouri. 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 · 227 beneficiaries · Specialist avg: 1K
Generic prescribing
80%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.0K
31 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

DONOVAN POLACK, MD filed 1,920 Medicare Part D claims in 2023 as a Specialist in FLORISSANT, Missouri, prescribing 80% generic.

2K
Part D claims, 2023
80%
generic prescribing
$1.0K
industry payments (Sunshine Act)

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.

DONOVAN POLACK, MD's Medicare Part D volume vs every U.S. prescriber

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

1,920 Top 16% higher than 84% 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%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). This entry sits in this band. 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

What does the federal data show about DONOVAN POLACK, MD?

Quality data not reported

NPI registry status

Active

Issued 05/19/2006

NPI 1659324465

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

1,920 30% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

Specialty distribution in Missouri

How Specialist compares to other specialties among Missouri providers

Missouri providers

Specialist share within Missouri

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within Missouri

Specialty board-certification context

Estimated specialty board-certified rate — Specialist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Specialist ABMS/AOA estimate

Est. board-certified rate (Specialist) — ABMS / AOA estimate

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

DONOVAN POLACK, MD is a Specialist provider practicing in FLORISSANT, Missouri, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1659324465. 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.

DONOVAN POLACK, MD appears in the CMS NPPES registry as a Specialist provider holding MD credentials at 1265 GRAHAM RD STE 1, FLORISSANT, MO, 63031, with a listed phone of (314) 741-1600. NPI 1659324465 was issued on 05/19/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what POLACK 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 1,920 prescription claims written by this provider, covering 227 Medicare beneficiaries and totaling roughly $534K in drug spend, split 20% brand-name and 80% generic by claim count, with an opioid prescribing rate of 3.5%. 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.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

1265 GRAHAM RD STE 1
FLORISSANT, MO 63031

Provider Details

NPI 1659324465
Specialty Specialist
Credentials MD
Gender Male
NPI Issued 05/19/2006

Hospital and facility affiliations

Facilities where DONOVAN POLACK, 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.

ST LOUIS KIDNEY CARE LLC
FLORISSANT, MO

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 DONOVAN POLACK, MD. Source: openpaymentsdata.cms.gov.

Total received

$1.0K

Largest payer

Fresenius USA Marketing, 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.

Brand vs generic prescribing mix · Typical

DONOVAN POLACK, MD — brand share 20.0%
Specialty average (est.)

20% brand-name claims vs 80% generic, on 1,920 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.

1,920
Total Claims
$534K
Total Drug Cost
227
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,063
Total Day Supply
119,760
Brand vs Generic
20% brand / 80% generic
Brand Drug Cost
$462K
Generic Drug Cost
$72K
Opioid Claims
68 (3.5% rate)
Antibiotic Claims
19

Patient Demographics

Average Patient Age
70.3 years
Avg HCC Risk Score
4.68
Gender Split
47% female / 53% male
Age Distribution
<65: 52, 65-74: 95, 75-84: 59, 85+: 21

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Farxiga
Dapagliflozin Propanediol
174
Losartan Potassium
173
Carvedilol
148
Amlodipine Besylate
122
Sevelamer Carbonate
89
Chlorthalidone
71
Velphoro
Sucroferric Oxyhydroxide
63
Atorvastatin Calcium
57
Furosemide
57
Tramadol Hcl
57

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

Specialist Overview

How DONOVAN POLACK, MD fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

DONOVAN POLACK, MD's 1,920 claims are above the specialty average of 1,474.

Nearby Specialist Providers in Missouri

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

Compare Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is DONOVAN POLACK, MD's specialty?
DONOVAN POLACK, MD specializes in Specialist and practices in FLORISSANT, Missouri. Credentials: MD.
How much does DONOVAN POLACK, MD prescribe under Medicare Part D?
In 2023, DONOVAN POLACK, MD wrote 1,920 Medicare Part D claims totaling $534K in drug costs for 227 beneficiaries.
Where is DONOVAN POLACK, MD located?
DONOVAN POLACK, MD is located at 1265 GRAHAM RD STE 1, FLORISSANT, MO, 63031. Phone: (314) 741-1600.
What is DONOVAN POLACK, MD's NPI number?
DONOVAN POLACK, MD's National Provider Identifier (NPI) is 1659324465, issued on 05/19/2006.
Does DONOVAN POLACK, MD prescribe more brand-name or generic drugs?
DONOVAN POLACK, MD's prescribing is 20% brand-name and 80% generic drugs by claim count, with $462K in brand drug costs.
Does DONOVAN POLACK, MD prescribe opioids?
Yes, DONOVAN POLACK, MD had 68 opioid claims in 2023 with an opioid prescribing rate of 3.5%.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does DONOVAN POLACK, MD prescribe most often?
Based on 2023 Medicare Part D data, DONOVAN POLACK, MD's most frequently prescribed drugs include Farxiga, Losartan Potassium, Carvedilol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DONOVAN POLACK, MD accept Medicare?
DONOVAN POLACK, MD appears in CMS Medicare data with 1,920 Part D claims and 227 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DONOVAN POLACK, MD's credentials?
DONOVAN POLACK, MD's NPI is 1659324465 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