NPI registry status
Active
2026 NPPES data General Practice Physician NPI 1003142886 D.O.
Verify on CMS → Heather McDonald, D.O.
General Practice Physician in San Dimas, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,838 in General Practice 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
4K
Medicare Part D claims · 334 beneficiaries · General Practice Physician avg: 3K
Generic prescribing
87%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
79.3/100
▼ 4 pts below national avg 83.5 · Above neutral
Industry payments
$120.3
6 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Heather McDonald, D.O. reported a CMS MIPS final score of 79.3/100 - below the 83.5 national average - and filed 3,768 Medicare Part D claims in 2024.
- 79.3/100
- MIPS score · -4 vs avg
- 4K
- Part D claims, 2024
- 87%
- 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.
Federal trust snapshot
What official records show about Heather McDonald, D.O.
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1003142886), first enumerated 10/28/2009.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 3,768 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 79.3/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$120.3 in reported industry payments (6 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Heather McDonald, D.O.'s individual license status. Verify directly with the state medical board.
Source: MBC 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 1003142886 · General Practice Physician
NPI-10 · ENUM-MID · TAX-MID · MIPS-BELOW · RX-MID · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1003142886
- ENUM-MID 2009
- TAX-MID 17K General Practice
- MIPS-BELOW 79.3/100
- RX-MID 3,768
- BOOK-LIGHT 1,869 in California
- PHOTO-FINISH Eva Aagaard, MD · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- McDonald · this …
McDonald · this provider
79.3 MIPS pts
- Emily Beck, MD ·…
Emily Beck, MD
79.3 MIPS pts
- Eva Aagaard, MD …
Eva Aagaard, MD
79.3 MIPS pts
- Chandra Aubin, M…
Chandra Aubin, MD
79.3 MIPS pts
- Brian Bausano, M…
Brian Bausano, MD
79.3 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Heather McDonald, D.O.'s MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
79 ≥ 26th percentile 26% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. 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 whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Heather McDonald, D.O. sits
This provider among general practice physician peers
Across the 714 general practice physician providers who report both Medicare Part D prescribing and a MIPS quality score, Heather McDonald, D.O. writes more Part D claims than 76% of them and scores higher on MIPS quality than 33% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one general practice physician peer from a representative sample of 60; the gold marker is Heather McDonald, D.O.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Heather McDonald, D.O. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - 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 Heather McDonald, D.O.?
Near national averagePrimary specialty
General Practice Physician
Medicare Part D claims
3,768 27% vs specialty avg
MIPS final score
79.3/100 4.2 pts vs avg
Specialty distribution in California
How General Practice Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Heather McDonald, D.O.'s 2023 MIPS final score plotted against the General Practice Physician national average
- MIPS Final Score
- 79.3/100
- vs 83.5 national avg · 2023 performance year
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 | 1003142886 |
|---|---|
| Specialty | General Practice Physician |
| Credentials | D.O. |
| Gender | Female |
| NPI Issued | 10/28/2009 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
79.29
Final Score
Measured-score avg: 83.5
67.4646
Quality
50.2257
Cost
90
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Heather McDonald, D.O. 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.
Emanate Health Medical Care Foundation
West Covina, CA
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 Heather McDonald, D.O.. Source: openpaymentsdata.cms.gov.
Total received
$120
Largest payer
Abbott Laboratories
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 - California MBC 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 ~150K California medical licensees in 2023 - they are NOT specific to Heather McDonald, D.O.. To verify Heather McDonald, D.O.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases
MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Heather McDonald, D.O. - brand share 12.0%
General Practice Physician average
12% brand-name claims vs 87% generic, on 3,768 2024 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 2024.
3,768
Total Claims
$365K
Total Drug Cost
334
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 8,174.133
- Total Day Supply
- 238,785
- Brand vs Generic
- 12% brand / 87% generic
- Brand Drug Cost
- $307K
- Generic Drug Cost
- $56K
- Antibiotic Claims
- 101
Patient Demographics
- Average Patient Age
- 72.8 years
- Avg HCC Risk Score
- 1.25
- Gender Split
- 75% female / 25% male
- Age Distribution
- <65: 22, 65-74: 184, 75-84: 96, 85+: 32
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Heather McDonald, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Atorvastatin Calcium
Atorvastatin Calcium
223 claims
- Levothyroxine Sodium
Levothyroxine Sodium
200 claims
- Lisinopril
Lisinopril
131 claims
- Losartan Potassium
Losartan Potassium
125 claims
- Gabapentin
Gabapentin
123 claims
- Metformin Hcl
Metformin Hcl
103 claims
- Fluoxetine Hcl 78
Fluoxetine Hcl
78 claims
- Amlodipine Besylate 77
Amlodipine Besylate
77 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 223 |
| Levothyroxine Sodium | 200 |
| Lisinopril | 131 |
| Losartan Potassium | 125 |
| Gabapentin | 123 |
| Metformin Hcl | 103 |
| Fluoxetine Hcl | 78 |
| Amlodipine Besylate | 77 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 72 |
| Metoprolol Succinate | 71 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
General Practice Physician Overview
How Heather McDonald, D.O. fits within the General Practice Physician landscape nationally.
16,838
General Practice Physician Providers in US
56
States with General Practice Physician
2,957
Avg Claims per Provider
Heather McDonald, D.O.'s 3,768 claims are above the specialty average of 2,957.
Nationwide General Practice Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for McDonald, both outside California so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (79.3 here).
Same NPPES enumeration year (2009)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby General Practice Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as McDonald.
One of 1,869 General Practice Physician providers enrolled in California, 5 are shown here.
Dr. Dalal Aago
MD
El Cajon, CA
Dr. Hessam Aazami
M.D.
Canoga Park, CA
Dr. Kenric Aban
M.D.
Oceanside, CA
Dr. Tahira Abbasi
MD
La Jolla, CA
Dr. Ryan Abbott
M.D.
Los Angeles, CA
Compare General Practice Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Heather McDonald, D.O.'s specialty? ▼
Heather McDonald, D.O. specializes in General Practice Physician and practices in San Dimas, California. Credentials: D.O..
How much does Heather McDonald, D.O. prescribe under Medicare Part D? ▼
In 2024, Heather McDonald, D.O. wrote 3,768 Medicare Part D claims totaling $365K in drug costs for 334 beneficiaries.
What is Heather McDonald, D.O.'s Medicare quality score? ▼
Heather McDonald, D.O. has a CMS MIPS Final Score of 79.3/100 (Quality: 67.5, Cost: 50.2). 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 Heather McDonald, D.O. located? ▼
Heather McDonald, D.O. is located at 1125 VIA VERDE, San Dimas, CA, 91773. Phone: (909) 592-9778.
What is Heather McDonald, D.O.'s NPI number? ▼
Heather McDonald, D.O.'s National Provider Identifier (NPI) is 1003142886, issued on 10/28/2009.
Does Heather McDonald, D.O. prescribe more brand-name or generic drugs? ▼
Heather McDonald, D.O.'s prescribing is 12% brand-name and 87% generic drugs by claim count, with $307K in brand drug costs.
How many General Practice Physician providers are there in the US? ▼
There are 16,838 General Practice Physician providers across 56 states in the US. The average General Practice Physician provider writes 2,957 Medicare Part D claims per year.
What drugs does Heather McDonald, D.O. prescribe most often? ▼
Based on 2024 Medicare Part D data, Heather McDonald, D.O.'s most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Heather McDonald, D.O. accept Medicare? ▼
Heather McDonald, D.O. appears in CMS Medicare data with 3,768 Part D claims and 334 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Heather McDonald, D.O.'s credentials? ▼
Heather McDonald, D.O.'s NPI is 1003142886 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.
- 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 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.