NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1326176405 MD
Verify on CMS → Isabel Lee, MD
Family Medicine Physician in Oakland, 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 150,125 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
772
Medicare Part D claims · 85 beneficiaries · Family Medicine Physician avg: 4K
What the federal data shows
Isabel Lee, MD filed 772 Medicare Part D claims in 2024 as a Family Medicine Physician in Oakland, California.
- 772
- Part D claims, 2024
- ≥70th
- 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 Isabel Lee, MD
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 1326176405), first enumerated 03/01/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 772 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
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Isabel Lee, MD'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 1326176405 · Family Medicine Physician
NPI-10 · ENUM-MID · TAX-MEGA · RX-LIGHT · BOOK-MID · PHOTO-ENUM
- NPI-10 1326176405
- ENUM-MID 2007
- TAX-MEGA 150K Family Medicine
- RX-LIGHT 772
- BOOK-MID 16,272 in California
- PHOTO-ENUM Kevin Longie · 2007
Isabel Lee, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
772 ≥ 70th percentile 70% 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)
Isabel Lee, 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 Isabel Lee, MD?
Quality data not reportedPrimary specialty
Family Medicine Physician
Medicare Part D claims
772 78% vs specialty avg
Specialty distribution in California
How Family Medicine Physician 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 Family Medicine 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 | 1326176405 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 03/01/2007 |
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 Isabel Lee, MD. To verify Isabel Lee, MD'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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
772
Total Claims
$110K
Total Drug Cost
85
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,590.967
- Total Day Supply
- 46,192
- Generic Drug Cost
- $16K
- Opioid Claims
- 52 (6.7% rate)
Patient Demographics
- Average Patient Age
- 71.8 years
- Avg HCC Risk Score
- 1.20
- Gender Split
- 62% female / 38% male
- Age Distribution
- <65: 15, 65-74: 39, 75-84: 20, 85+: 11
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Isabel Lee, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Metformin Hcl
Metformin Hcl
53 claims
- Atorvastatin Calcium
Atorvastatin Calcium
38 claims
- Glipizide
Glipizide
33 claims
- Levothyroxine Sodium
Levothyroxine Sodium
31 claims
- Diclofenac Sodium
Diclofenac Sodium
29 claims
- Amlodipine Besylate
Amlodipine Besylate
28 claims
- Benazepril Hcl
Benazepril Hcl
26 claims
- Omeprazole
Omeprazole
26 claims
| Drug | Claims |
|---|---|
| Metformin Hcl | 53 |
| Atorvastatin Calcium | 38 |
| Glipizide | 33 |
| Levothyroxine Sodium | 31 |
| Diclofenac Sodium | 29 |
| Amlodipine Besylate | 28 |
| Benazepril Hcl | 26 |
| Omeprazole | 26 |
| Morphine Sulfate Er Morphine Sulfate | 23 |
| Fluticasone Propionate | 19 |
* 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 Isabel Lee, MD fits within the Family Medicine Physician landscape nationally.
150,125
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,519
Avg Claims per Provider
Isabel Lee, MD's 772 claims are below the specialty average of 3,519.
Nationwide Family Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Lee, both outside California so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Medicine Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Lee.
One of 16,272 Family Medicine Physician providers enrolled in California, 5 are shown here.
Dr. Omer Aba-Omer
MD
Santa Monica, CA
Dr. Michelle Ababa
MD
Wilmington, CA
Dr. Anna Tzeitel Abalos
MD
Roseville, CA
Dr. Adan Abarca
MD
Anaheim, CA
Dr. Vanessa Abarca
DO
Ventura, CA
Compare Family Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Isabel Lee, MD's specialty? ▼
Isabel Lee, MD specializes in Family Medicine Physician and practices in Oakland, California. Credentials: MD.
How much does Isabel Lee, MD prescribe under Medicare Part D? ▼
In 2024, Isabel Lee, MD wrote 772 Medicare Part D claims totaling $110K in drug costs for 85 beneficiaries.
Where is Isabel Lee, MD located? ▼
Isabel Lee, MD is located at 1030 INTERNATIONAL BLVD, Oakland, CA, 94606. Phone: (510) 238-5416.
What is Isabel Lee, MD's NPI number? ▼
Isabel Lee, MD's National Provider Identifier (NPI) is 1326176405, issued on 03/01/2007.
Does Isabel Lee, MD prescribe opioids? ▼
Yes, Isabel Lee, MD had 52 opioid claims in 2024 with an opioid prescribing rate of 6.7%.
How many Family Medicine Physician providers are there in the US? ▼
There are 150,125 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,519 Medicare Part D claims per year.
What drugs does Isabel Lee, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Isabel Lee, MD's most frequently prescribed drugs include Metformin Hcl, Atorvastatin Calcium, Glipizide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Isabel Lee, MD accept Medicare? ▼
Isabel Lee, MD appears in CMS Medicare data with 772 Part D claims and 85 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Isabel Lee, MD's credentials? ▼
Isabel Lee, MD's NPI is 1326176405 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
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.