2026 NPPES data Preventive Medicine/Occupational Environmental Medicine Physician NPI 1356550792 MD
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Craig Thorne, MD

Preventive Medicine/Occupational Environmental Medicine Physician in Silver Spring, Maryland. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 957 in Preventive Medicine/Occupational Environmental Medicine 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
13
Medicare Part D claims · Preventive Medicine/Occupational Environmental Medicine Physician avg: 856
Generic prescribing
0%
generic claims · 100% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Craig Thorne, MD filed 13 Medicare Part D claims in 2023 as a Preventive Medicine/Occupational Environmental Medicine Physician in Silver Spring, Maryland, prescribing 0% generic.

13
Part D claims, 2023
0%
generic prescribing

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.

Craig Thorne, MD's Medicare Part D volume vs every U.S. prescriber

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

13 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 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-eligible specialty (heuristic — not verified)

Craig Thorne, MD 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).

What does the federal data show about Craig Thorne, MD?

Quality data not reported

NPI registry status

Active

Issued 05/22/2007

NPI 1356550792

Primary specialty

Preventive Medicine/Occupational Environmental Medicine Physician

Niche

957 US NPIs in this specialty

Medicare Part D claims

13 98% vs specialty avg

2023 prescription claims

Specialty avg: 856

Specialty distribution in Maryland

How Preventive Medicine/Occupational Environmental Medicine Physician compares to other specialties among Maryland providers

Maryland providers

Largest specialties in Maryland (% of in-state providers)

Behavior Technician — 14.1%Behavior Technician14.1%Clinical Social Worker — 5.5%Clinical Social Worker5.5%Student in an Organized Health Care Education/Training Program — 4.5%Student in an Organized Health Care Education/Training Program4.5%Home Health Aide — 4.4%Home Health Aide4.4%Physical Therapist — 3.9%Physical Therapist3.9%Pharmacist — 3.6%Pharmacist3.6%Preventive Medicine/Occupational Environmental Medicine Physician — 0%Preventive Medicine/Occupational Environmental Medicine Physician0%
Largest specialties in Maryland (% of in-state providers)

Specialty board-certification context

Estimated specialty board-certified rate — Preventive Medicine/Occupational Environmental Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Preventive Medicine/Occupational Environmental Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Preventive Medicine/Occupational Environmental Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Preventive Medicine/Occupational Environmental Medicine 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).

Craig Thorne, MD appears in the CMS NPPES registry as a Preventive Medicine/Occupational Environmental Medicine Physician provider holding MD credentials at 3110 GRACEFIELD RD, Silver Spring, MD, 20904, with a listed phone of (301) 628-3644. NPI 1356550792 was issued on 05/22/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Thorne 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 13 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $1K in drug spend, split 100% brand-name and 0% 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.

Preventive Medicine/Occupational Environmental Medicine Physician is a narrow specialty nationwide, with 957 enrolled providers across 50 states and an average of 856 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

3110 GRACEFIELD RD
Silver Spring, MD 20904

Provider Details

NPI 1356550792
Specialty Preventive Medicine/Occupational Environmental Medicine Physician
Credentials MD
Gender Male
NPI Issued 05/22/2007

Brand vs generic prescribing mix · Brand-heavy

Craig Thorne, MD — brand share 100.0%
Preventive Medicine/Occupational Environmental Medicine Physician average

100% brand-name claims vs 0% generic, on 13 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.

13
Total Claims
$1K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
13
Total Day Supply
13
Brand vs Generic
100% brand / 0% generic
Brand Drug Cost
$1K
Generic Drug Cost
$0

Patient Demographics

Average Patient Age
70.5 years
Avg HCC Risk Score
0.79

Preventive Medicine/Occupational Environmental Medicine Physician Overview

How Craig Thorne, MD fits within the Preventive Medicine/Occupational Environmental Medicine Physician landscape nationally.

957
Preventive Medicine/Occupational Environmental Medicine Physician Providers in US
50
States with Preventive Medicine/Occupational Environmental Medicine Physician
856
Avg Claims per Provider

Craig Thorne, MD's 13 claims are below the specialty average of 856.

Nearby Preventive Medicine/Occupational Environmental Medicine Physician Providers in Maryland

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

Compare Preventive Medicine/Occupational Environmental Medicine 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 Maryland medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Preventive Medicine/Occupational Environmental Medicine 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 Craig Thorne, MD's specialty?
Craig Thorne, MD specializes in Preventive Medicine/Occupational Environmental Medicine Physician and practices in Silver Spring, Maryland. Credentials: MD.
How much does Craig Thorne, MD prescribe under Medicare Part D?
In 2023, Craig Thorne, MD wrote 13 Medicare Part D claims totaling $1K in drug costs for N/A beneficiaries.
Where is Craig Thorne, MD located?
Craig Thorne, MD is located at 3110 GRACEFIELD RD, Silver Spring, MD, 20904. Phone: (301) 628-3644.
What is Craig Thorne, MD's NPI number?
Craig Thorne, MD's National Provider Identifier (NPI) is 1356550792, issued on 05/22/2007.
Does Craig Thorne, MD prescribe more brand-name or generic drugs?
Craig Thorne, MD's prescribing is 100% brand-name and 0% generic drugs by claim count, with $1K in brand drug costs.
How many Preventive Medicine/Occupational Environmental Medicine Physician providers are there in the US?
There are 957 Preventive Medicine/Occupational Environmental Medicine Physician providers across 50 states in the US. The average Preventive Medicine/Occupational Environmental Medicine Physician provider writes 856 Medicare Part D claims per year.
Does Craig Thorne, MD accept Medicare?
Craig Thorne, MD appears in CMS Medicare data with 13 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Craig Thorne, MD's credentials?
Craig Thorne, MD's NPI is 1356550792 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

Compiled from official public sources by the PlainDoctor editorial team.