2026 NPPES data Physical Medicine & Rehabilitation Physician NPI 1508896077 M.D.
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RONALD FISCHER, M.D.

Physical Medicine & Rehabilitation Physician in CHESTERFIELD, 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
214
Medicare Part D claims · 107 beneficiaries · Physical Medicine & Rehabilitation Physician avg: 781
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: RONALD FISCHER, M.D. is a Physical Medicine & Rehabilitation Physician ([object Object]) practicing in CHESTERFIELD, Missouri with a Medicare Part D prescribing footprint of 214 claims across 107 beneficiaries — 7% brand-name prescribing .

What stands out: RONALD FISCHER, M.D. filed 214 Medicare Part D claims in 2023 across CHESTERFIELD, Missouri. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

RONALD FISCHER, 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).

RONALD FISCHER, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/03/2006

NPI 1508896077

Primary specialty

Physical Medicine & Rehabilitation Physician

Mid-sized

15,306 US NPIs in this specialty

Medicare Part D claims

214 73% vs specialty avg

2023 prescription claims

Specialty avg: 781

Specialty distribution in Missouri

How Physical Medicine & Rehabilitation Physician compares to other specialties among Missouri providers

Missouri providers

Physical Medicine & Rehabilitation Physician share within Missouri

1. Physical Medicine & Rehabilitation Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Physical Medicine & Rehabilitation Physician share within Missouri

Specialty board-certification context

Estimated specialty board-certified rate — Physical Medicine & Rehabilitation Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Physical Medicine & Rehabilitation Physician ABMS/AOA estimate

Est. board-certified rate (Physical Medicine & Rehabilitation Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Physical Medicine & Rehabilitation 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).

RONALD FISCHER, M.D. is a Physical Medicine & Rehabilitation Physician provider practicing in CHESTERFIELD, Missouri, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1508896077. 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.

RONALD FISCHER, M.D. appears in the CMS NPPES registry as a Physical Medicine & Rehabilitation Physician provider holding M.D. credentials at 224 S WOODS MILL RD, CHESTERFIELD, MO, 63017, with a listed phone of (314) 205-6898. NPI 1508896077 was issued on 07/03/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FISCHER 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 214 prescription claims written by this provider, covering 107 Medicare beneficiaries and totaling roughly $5K in drug spend, split 7% brand-name and 93% generic by claim count, with an opioid prescribing rate of 51.4%. 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.

Physical Medicine & Rehabilitation Physician is a mid-sized specialty nationwide, with 15,306 enrolled providers across 54 states and an average of 781 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

224 S WOODS MILL RD
CHESTERFIELD, MO 63017

Provider Details

NPI 1508896077
Specialty Physical Medicine & Rehabilitation Physician
Credentials M.D.
Gender Male
NPI Issued 07/03/2006

Brand vs generic prescribing mix · Generic-heavy

RONALD FISCHER, M.D. — brand share 7.0%
Specialty average (est.)

7% brand-name claims vs 93% generic, on 214 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.

214
Total Claims
$5K
Total Drug Cost
107
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
230
Total Day Supply
3,851
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$2K
Generic Drug Cost
$3K
Opioid Claims
110 (51.4% rate)

Patient Demographics

Average Patient Age
74.9 years
Avg HCC Risk Score
2.51
Gender Split
60% female / 40% male
Age Distribution
<65: 13, 65-74: 38, 75-84: 34, 85+: 22

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
44
Oxycodone Hcl
27
Tramadol Hcl
25
Baclofen
19
Diazepam
15
Tizanidine Hcl
15

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

Physical Medicine & Rehabilitation Physician Overview

How RONALD FISCHER, M.D. fits within the Physical Medicine & Rehabilitation Physician landscape nationally.

15,306
Physical Medicine & Rehabilitation Physician Providers in US
54
States with Physical Medicine & Rehabilitation Physician
781
Avg Claims per Provider

RONALD FISCHER, M.D.'s 214 claims are below the specialty average of 781.

Nearby Physical Medicine & Rehabilitation Physician Providers in Missouri

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

Compare Physical Medicine & Rehabilitation Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is RONALD FISCHER, M.D.'s specialty?
RONALD FISCHER, M.D. specializes in Physical Medicine & Rehabilitation Physician and practices in CHESTERFIELD, Missouri. Credentials: M.D..
How much does RONALD FISCHER, M.D. prescribe under Medicare Part D?
In 2023, RONALD FISCHER, M.D. wrote 214 Medicare Part D claims totaling $5K in drug costs for 107 beneficiaries.
Where is RONALD FISCHER, M.D. located?
RONALD FISCHER, M.D. is located at 224 S WOODS MILL RD, CHESTERFIELD, MO, 63017. Phone: (314) 205-6898.
What is RONALD FISCHER, M.D.'s NPI number?
RONALD FISCHER, M.D.'s National Provider Identifier (NPI) is 1508896077, issued on 07/03/2006.
Does RONALD FISCHER, M.D. prescribe more brand-name or generic drugs?
RONALD FISCHER, M.D.'s prescribing is 7% brand-name and 93% generic drugs by claim count, with $2K in brand drug costs.
Does RONALD FISCHER, M.D. prescribe opioids?
Yes, RONALD FISCHER, M.D. had 110 opioid claims in 2023 with an opioid prescribing rate of 51.4%.
How many Physical Medicine & Rehabilitation Physician providers are there in the US?
There are 15,306 Physical Medicine & Rehabilitation Physician providers across 54 states in the US. The average Physical Medicine & Rehabilitation Physician provider writes 781 Medicare Part D claims per year.
What drugs does RONALD FISCHER, M.D. prescribe most often?
Based on 2023 Medicare Part D data, RONALD FISCHER, M.D.'s most frequently prescribed drugs include Hydrocodone-Acetaminophen, Oxycodone Hcl, Tramadol Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does RONALD FISCHER, M.D. accept Medicare?
RONALD FISCHER, M.D. appears in CMS Medicare data with 214 Part D claims and 107 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RONALD FISCHER, M.D.'s credentials?
RONALD FISCHER, M.D.'s NPI is 1508896077 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