NPI registry status
Active
2026 NPPES data Neuromusculoskeletal Medicine & OMM Physician NPI 1346278694 D.O.
Verify on CMS → David Grimshaw, D.O.
Neuromusculoskeletal Medicine & OMM Physician in Lansing, Michigan.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,232 in Neuromusculoskeletal Medicine & OMM 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
233
Medicare Part D claims · 32 beneficiaries · Neuromusculoskeletal Medicine & OMM Physician avg: 1K
What the federal data shows
David Grimshaw, D.O. filed 233 Medicare Part D claims in 2024 as a Neuromusculoskeletal Medicine & OMM Physician in Lansing, Michigan.
- 233
- Part D claims, 2024
- ≥48th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about David Grimshaw, D.O.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1346278694), first enumerated 06/28/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 233 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- State context
State board disciplinary context
Michigan statewide board action statistics are published annually — these figures describe aggregate state activity, not David Grimshaw, D.O.'s individual license status. Verify directly with the state medical board.
Source: MI-BOM annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1346278694 · Neuromusculoskeletal Medicine & OMM Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1346278694
- ENUM-LEGACY 2006
- TAX-NARROW 1,232
- RX-LIGHT 233
- BOOK-THIN 83 in Michigan
- PHOTO-ENUM Ross Pope · 2006
David Grimshaw, D.O.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
233 ≥ 48th percentile 48% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
Board-eligible specialty (heuristic, not verified)
David Grimshaw, D.O. 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 David Grimshaw, D.O.?
Quality data not reportedPrimary specialty
Neuromusculoskeletal Medicine & OMM Physician
Medicare Part D claims
233 80% vs specialty avg
Specialty distribution in Michigan
How Neuromusculoskeletal Medicine & OMM Physician compares to other specialties among Michigan 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 Neuromusculoskeletal Medicine & OMM 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).
Practice Address
Provider Details
| NPI | 1346278694 |
|---|---|
| Specialty | Neuromusculoskeletal Medicine & OMM Physician |
| Credentials | D.O. |
| Gender | Male |
| NPI Issued | 06/28/2006 |
License & disciplinary context - Michigan MI-BOM 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 ~41K Michigan medical licensees in 2023 - they are NOT specific to David Grimshaw, D.O.. To verify David Grimshaw, D.O.'s current license status, search the MI-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
123
Total board actions, Michigan 2023
Across 120 cases
3.00
Actions per 1,000 licensees
Michigan statewide rate
probation
Most common action type
44 cases
MI-BOM 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 Michigan disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
233
Total Claims
$6K
Total Drug Cost
32
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 349.133
- Total Day Supply
- 9,493
- Generic Drug Cost
- $3K
- Opioid Claims
- 29 (12.4% rate)
Patient Demographics
- Average Patient Age
- 72.0 years
- Avg HCC Risk Score
- 0.99
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What David Grimshaw, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Gabapentin
Gabapentin
25 claims
- Ropinirole Hcl
Ropinirole Hcl
21 claims
- Ventolin Hfa
Ventolin Hfa
15 claims
- Acetaminophen-Code…
Acetaminophen-Codeine
12 claims
- Fluoxetine Hcl
Fluoxetine Hcl
12 claims
- Lisinopril
Lisinopril
12 claims
- Tolterodine Tartra…
Tolterodine Tartrate Er
12 claims
| Drug | Claims |
|---|---|
| Gabapentin | 25 |
| Ropinirole Hcl | 21 |
| Ventolin Hfa Albuterol Sulfate | 15 |
| Acetaminophen-Codeine Acetaminophen With Codeine | 12 |
| Fluoxetine Hcl | 12 |
| Lisinopril | 12 |
| Tolterodine Tartrate Er Tolterodine Tartrate | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Neuromusculoskeletal Medicine & OMM Physician in MI →
All providers in Michigan →
Compare specialties →
Neuromusculoskeletal Medicine & OMM Physician Overview
How David Grimshaw, D.O. fits within the Neuromusculoskeletal Medicine & OMM Physician landscape nationally.
1,232
Neuromusculoskeletal Medicine & OMM Physician Providers in US
51
States with Neuromusculoskeletal Medicine & OMM Physician
1,149
Avg Claims per Provider
David Grimshaw, D.O.'s 233 claims are below the specialty average of 1,149.
Nationwide Neuromusculoskeletal Medicine & OMM Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Grimshaw, both outside Michigan so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Neuromusculoskeletal Medicine & OMM Physician Providers in Michigan
Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as Grimshaw.
One of 83 Neuromusculoskeletal Medicine & OMM Physician providers enrolled in Michigan, 5 are shown here.
Dr. Bashar Abou-Rass
M.D.
Bloomfield, MI
Dr. Theresa Andersonning
D.O.
Farmington Hills, MI
Dr. Javier Baca
DO
East Lansing, MI
Dr. Nathan Barnhurst
DO
East Lansing, MI
Dr. Theodore Batzer
MD
Manistee, MI
Compare Neuromusculoskeletal Medicine & OMM Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is David Grimshaw, D.O.'s specialty? ▼
David Grimshaw, D.O. specializes in Neuromusculoskeletal Medicine & OMM Physician and practices in Lansing, Michigan. Credentials: D.O..
How much does David Grimshaw, D.O. prescribe under Medicare Part D? ▼
In 2024, David Grimshaw, D.O. wrote 233 Medicare Part D claims totaling $6K in drug costs for 32 beneficiaries.
Where is David Grimshaw, D.O. located? ▼
David Grimshaw, D.O. is located at 1106 N CEDAR ST., Lansing, MI, 48906. Phone: (517) 492-4818.
What is David Grimshaw, D.O.'s NPI number? ▼
David Grimshaw, D.O.'s National Provider Identifier (NPI) is 1346278694, issued on 06/28/2006.
Does David Grimshaw, D.O. prescribe opioids? ▼
Yes, David Grimshaw, D.O. had 29 opioid claims in 2024 with an opioid prescribing rate of 12.4%.
How many Neuromusculoskeletal Medicine & OMM Physician providers are there in the US? ▼
There are 1,232 Neuromusculoskeletal Medicine & OMM Physician providers across 51 states in the US. The average Neuromusculoskeletal Medicine & OMM Physician provider writes 1,149 Medicare Part D claims per year.
What drugs does David Grimshaw, D.O. prescribe most often? ▼
Based on 2024 Medicare Part D data, David Grimshaw, D.O.'s most frequently prescribed drugs include Gabapentin, Ropinirole Hcl, Ventolin Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does David Grimshaw, D.O. accept Medicare? ▼
David Grimshaw, D.O. appears in CMS Medicare data with 233 Part D claims and 32 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify David Grimshaw, D.O.'s credentials? ▼
David Grimshaw, D.O.'s NPI is 1346278694 with credentials D.O.. 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 (2024). 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.