NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1629097530 M..D.
Verify on CMS → Cheryl Johnstone, M..D.
Family Medicine Physician in Northville, 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 147,760 in Family 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
6K
Medicare Part D claims · 601 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
86%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
CMS neutral threshold · no category scores published
Industry payments
$1.1K
65 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Cheryl Johnstone, M..D. carries the neutral CMS MIPS final score of 75/100, assigned where no category was scored - and filed 6,486 Medicare Part D claims in 2023.
- 75/100
- CMS neutral score · not measured
- 6K
- Part D claims, 2023
- 86%
- 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.
CMS NPPES provider registry desk
NPI 1629097530 · Family Medicine Physician
NPI-10 · ENUM-LEGACY · TAX-MEGA · MIPS-NEUTRAL · RX-MID · BOOK-MID · PHOTO-ENUM
- NPI-10 1629097530
- ENUM-LEGACY 2006
- TAX-MEGA 148K Family Medicine
- MIPS-NEUTRAL 75/100
- RX-MID 6,486
- BOOK-MID 5,662 in Michigan
- PHOTO-ENUM Kenneth Wells · 2006
Cheryl Johnstone, M..D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
6,486 ≥ 96th percentile 96% of 1,370,886 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 · 2023
✓
Board certification likely (heuristic, not verified)
Cheryl Johnstone, M..D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Cheryl Johnstone, M..D.?
CMS neutral score, not measuredPrimary specialty
Family Medicine Physician
Medicare Part D claims
6,486 90% vs specialty avg
MIPS final score
75/100
Specialty distribution in Michigan
How Family Medicine Physician compares to other specialties among Michigan providers
MIPS score not measured
CMS assigned a neutral 75/100 threshold
CMS did not publish any Quality, Cost, Promoting Interoperability, or Improvement Activities category score for this clinician. This administrative threshold is not comparable with the national average of clinicians whose MIPS score was measured.
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 | 1629097530 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | M..D. |
| Gender | Female |
| NPI Issued | 07/19/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
CMS neutral threshold · not measured
Reporting: Group practice
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 Cheryl Johnstone, M..D.. Source: openpaymentsdata.cms.gov.
Total received
$1.1K
Largest payer
PFIZER 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.
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 Cheryl Johnstone, M..D.. To verify Cheryl Johnstone, M..D.'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.
Brand vs generic prescribing mix · Typical
Cheryl Johnstone, M..D. - brand share 13.0%
Family Medicine Physician average
13% brand-name claims vs 86% generic, on 6,486 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.
6,486
Total Claims
$662K
Total Drug Cost
601
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 14,526
- Total Day Supply
- 420,878
- Brand vs Generic
- 13% brand / 86% generic
- Brand Drug Cost
- $521K
- Generic Drug Cost
- $138K
- Opioid Claims
- 159 (2.5% rate)
- Antibiotic Claims
- 300
Patient Demographics
- Average Patient Age
- 74.9 years
- Avg HCC Risk Score
- 0.90
- Gender Split
- 71% female / 29% male
- Age Distribution
- <65: 19, 65-74: 291, 75-84: 224, 85+: 67
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Cheryl Johnstone, M..D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levothyroxine Sodium
Levothyroxine Sodium
426 claims
- Atorvastatin Calcium
Atorvastatin Calcium
399 claims
- Amlodipine Besylate
Amlodipine Besylate
290 claims
- Losartan Potassium
Losartan Potassium
289 claims
- Lisinopril
Lisinopril
240 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
219 claims
- Metoprolol Succinate
Metoprolol Succinate
173 claims
- Metformin Hcl 128
Metformin Hcl
128 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 426 |
| Atorvastatin Calcium | 399 |
| Amlodipine Besylate | 290 |
| Losartan Potassium | 289 |
| Lisinopril | 240 |
| Rosuvastatin Calcium | 219 |
| Metoprolol Succinate | 173 |
| Metformin Hcl | 128 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 117 |
| Pravastatin Sodium | 95 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How Cheryl Johnstone, M..D. fits within the Family Medicine Physician landscape nationally.
147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
Cheryl Johnstone, M..D.'s 6,486 claims are above the specialty average of 3,418.
Nationwide Family Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Johnstone, both outside Michigan so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (75 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Medicine Physician Providers in Michigan
Other clinicians with the same primary specialty enrolled in Michigan, drawn from the same CMS NPPES roster as Johnstone.
One of 5,662 Family Medicine Physician providers enrolled in Michigan, 5 are shown here.
Asma Abbas
Hamtramck, MI
Dr. Saadia Abbas
MD
Chesterfield, MI
Faezeh Abbasi
Monroe, MI
Dr. Marisa Abbo
DO
Rochester Hills, MI
Dr. Cathleen Abbott
M.D.
East Lansing, MI
Compare Family Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Cheryl Johnstone, M..D.'s specialty? ▼
Cheryl Johnstone, M..D. specializes in Family Medicine Physician and practices in Northville, Michigan. Credentials: M..D..
How much does Cheryl Johnstone, M..D. prescribe under Medicare Part D? ▼
In 2023, Cheryl Johnstone, M..D. wrote 6,486 Medicare Part D claims totaling $662K in drug costs for 601 beneficiaries.
What is Cheryl Johnstone, M..D.'s Medicare quality score? ▼
Cheryl Johnstone, M..D. has a CMS MIPS Final Score of 75/100. CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score for this clinician, so the final score is the neutral performance threshold CMS assigns rather than a measured result. The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Cheryl Johnstone, M..D. located? ▼
Cheryl Johnstone, M..D. is located at 308 S MAIN ST, Northville, MI, 48167. Phone: (249) 349-1900.
What is Cheryl Johnstone, M..D.'s NPI number? ▼
Cheryl Johnstone, M..D.'s National Provider Identifier (NPI) is 1629097530, issued on 07/19/2006.
Does Cheryl Johnstone, M..D. prescribe more brand-name or generic drugs? ▼
Cheryl Johnstone, M..D.'s prescribing is 13% brand-name and 86% generic drugs by claim count, with $521K in brand drug costs.
Does Cheryl Johnstone, M..D. prescribe opioids? ▼
Yes, Cheryl Johnstone, M..D. had 159 opioid claims in 2023 with an opioid prescribing rate of 2.5%.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,760 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does Cheryl Johnstone, M..D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Cheryl Johnstone, M..D.'s most frequently prescribed drugs include Levothyroxine Sodium, Atorvastatin Calcium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Cheryl Johnstone, M..D. accept Medicare? ▼
Cheryl Johnstone, M..D. appears in CMS Medicare data with 6,486 Part D claims and 601 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Cheryl Johnstone, M..D.'s credentials? ▼
Cheryl Johnstone, M..D.'s NPI is 1629097530 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
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 (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
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 May 2026.