NPI registry status
Active
2026 NPPES data Mental Health Counselor NPI 1083978506 M.D.
Verify on CMS → Nancy Vo, M.D.
Mental Health Counselor in Los Angeles, 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 293,893 in Mental Health Counselor, 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
2K
Medicare Part D claims · 189 beneficiaries · Mental Health Counselor avg: 1K
Generic prescribing
84%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Nancy Vo, M.D. filed 2,291 Medicare Part D claims in 2023 as a Mental Health Counselor in Los Angeles, California, prescribing 84% generic.
- 2K
- Part D claims, 2023
- 84%
- generic prescribing
- ≥85th
- 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.
Nancy Vo, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,291 ≥ 85th percentile 85% 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
What does the federal data show about Nancy Vo, M.D.?
Quality data not reportedPrimary specialty
Mental Health Counselor
Medicare Part D claims
2,291 116% vs specialty avg
Specialty distribution in California
How Mental Health Counselor compares to other specialties among California 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 Mental Health Counselor. 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).
Nancy Vo, M.D. appears in the CMS NPPES registry as a Mental Health Counselor provider holding M.D. credentials at 4733 W SUNSET BLVD, Los Angeles, CA, 90027, with a listed phone of (714) 886-8539. NPI 1083978506 was issued on 06/29/2012.
Medicare Part D records for calendar year 2023 show 2,291 prescription claims written by this provider, covering 189 Medicare beneficiaries and totaling roughly $222K in drug spend, split 14% brand-name and 84% generic by claim count, with an opioid prescribing rate of 1.9%.
Mental Health Counselor is a high-volume specialty nationwide, with 293,893 enrolled providers across 55 states and an average of 1,063 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
Provider Details
| NPI | 1083978506 |
|---|---|
| Specialty | Mental Health Counselor |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 06/29/2012 |
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 Nancy Vo, M.D.. To verify Nancy Vo, M.D.'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
Nancy Vo, M.D. - brand share 14.0%
Mental Health Counselor average
14% brand-name claims vs 84% generic, on 2,291 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.
2,291
Total Claims
$222K
Total Drug Cost
189
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,570
- Total Day Supply
- 129,151
- Brand vs Generic
- 14% brand / 84% generic
- Brand Drug Cost
- $151K
- Generic Drug Cost
- $70K
- Opioid Claims
- 44 (1.9% rate)
- Antibiotic Claims
- 25
Patient Demographics
- Average Patient Age
- 78.6 years
- Avg HCC Risk Score
- 3.25
- Gender Split
- 59% female / 41% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Nancy Vo, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
131 claims
- Furosemide
Furosemide
80 claims
- Omeprazole
Omeprazole
70 claims
- Sertraline Hcl
Sertraline Hcl
69 claims
- Lactulose
Lactulose
67 claims
- Gabapentin
Gabapentin
61 claims
- Bisoprolol Fumarate
Bisoprolol Fumarate
55 claims
- Eliquis
Eliquis
55 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 131 |
| Furosemide | 80 |
| Omeprazole | 70 |
| Sertraline Hcl | 69 |
| Lactulose | 67 |
| Gabapentin | 61 |
| Bisoprolol Fumarate | 55 |
| Eliquis Apixaban | 55 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 54 |
| Amlodipine Besylate | 53 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Mental Health Counselor Overview
How Nancy Vo, M.D. fits within the Mental Health Counselor landscape nationally.
293,893
Mental Health Counselor Providers in US
55
States with Mental Health Counselor
1,063
Avg Claims per Provider
Nancy Vo, M.D.'s 2,291 claims are above the specialty average of 1,063.
Nearby Mental Health Counselor Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Vo.
Dr. Rita A Wilborne
MHRS
San Jose, CA
Katie Aab
Salinas, CA
Dr. Kayla Aanerud
B.A.
Rio Linda, CA
La Shaun Aaron
Camarillo, CA
Tamika Aaron
Inglewood, CA
Compare Mental Health Counselor 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 California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Mental Health Counselor 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.
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Frequently Asked Questions
What is Nancy Vo, M.D.'s specialty? ▼
Nancy Vo, M.D. specializes in Mental Health Counselor and practices in Los Angeles, California. Credentials: M.D..
How much does Nancy Vo, M.D. prescribe under Medicare Part D? ▼
In 2023, Nancy Vo, M.D. wrote 2,291 Medicare Part D claims totaling $222K in drug costs for 189 beneficiaries.
Where is Nancy Vo, M.D. located? ▼
Nancy Vo, M.D. is located at 4733 W SUNSET BLVD, Los Angeles, CA, 90027. Phone: (714) 886-8539.
What is Nancy Vo, M.D.'s NPI number? ▼
Nancy Vo, M.D.'s National Provider Identifier (NPI) is 1083978506, issued on 06/29/2012.
Does Nancy Vo, M.D. prescribe more brand-name or generic drugs? ▼
Nancy Vo, M.D.'s prescribing is 14% brand-name and 84% generic drugs by claim count, with $151K in brand drug costs.
Does Nancy Vo, M.D. prescribe opioids? ▼
Yes, Nancy Vo, M.D. had 44 opioid claims in 2023 with an opioid prescribing rate of 1.9%.
How many Mental Health Counselor providers are there in the US? ▼
There are 293,893 Mental Health Counselor providers across 55 states in the US. The average Mental Health Counselor provider writes 1,063 Medicare Part D claims per year.
What drugs does Nancy Vo, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Nancy Vo, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Furosemide, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Nancy Vo, M.D. accept Medicare? ▼
Nancy Vo, M.D. appears in CMS Medicare data with 2,291 Part D claims and 189 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Nancy Vo, M.D.'s credentials? ▼
Nancy Vo, M.D.'s NPI is 1083978506 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.
- 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.