NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1831361047 D.O
Verify on CMS → Derald Seid, D.O
Internal Medicine Physician in San Francisco, 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 172,737 in Internal 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
327
Medicare Part D claims · 26 beneficiaries · Internal Medicine Physician avg: 3K
What the federal data shows
Derald Seid, D.O filed 327 Medicare Part D claims in 2023 as an Internal Medicine Physician in San Francisco, California.
- 327
- Part D claims, 2023
- ≥57th
- 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.
CMS NPPES provider registry desk
NPI 1831361047 · Internal Medicine Physician
NPI-10 · ENUM-MID · TAX-MEGA · RX-LIGHT · BOOK-MID · PHOTO-ENUM
- NPI-10 1831361047
- ENUM-MID 2008
- TAX-MEGA 173K Internal Medicine
- RX-LIGHT 327
- BOOK-MID 20,046 in California
- PHOTO-ENUM Anthony Dimaria · 2008
Derald Seid, D.O's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
327 ≥ 57th percentile 57% 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-eligible specialty (heuristic, not verified)
Derald Seid, 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 Derald Seid, D.O?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
327 88% vs specialty avg
Specialty distribution in California
How Internal 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 Internal 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 | 1831361047 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | D.O |
| Gender | Male |
| NPI Issued | 03/27/2008 |
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 Derald Seid, D.O. To verify Derald Seid, 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
327
Total Claims
$44K
Total Drug Cost
26
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 864
- Total Day Supply
- 25,733
- Generic Drug Cost
- $17K
Patient Demographics
- Average Patient Age
- 80.1 years
- Avg HCC Risk Score
- 0.89
- Gender Split
- 54% female / 46% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Derald Seid, D.O prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
55 claims
- Amlodipine Besylate
Amlodipine Besylate
22 claims
- Clonidine Hcl 18
Clonidine Hcl
18 claims
- Metformin Hcl Er 15
Metformin Hcl Er
15 claims
- Carvedilol 13
Carvedilol
13 claims
- Levothyroxine Sodium 11
Levothyroxine Sodium
11 claims
- Omega-3 Acid Ethyl… 11
Omega-3 Acid Ethyl Esters
11 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 55 |
| Amlodipine Besylate | 22 |
| Clonidine Hcl | 18 |
| Metformin Hcl Er Metformin Hcl | 15 |
| Carvedilol | 13 |
| Levothyroxine Sodium | 11 |
| Omega-3 Acid Ethyl Esters | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Derald Seid, D.O fits within the Internal Medicine Physician landscape nationally.
172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Derald Seid, D.O's 327 claims are below the specialty average of 2,716.
Nationwide Internal Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Seid, both outside California so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2008)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Internal Medicine Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Seid.
One of 20,046 Internal Medicine Physician providers enrolled in California, 5 are shown here.
Dr. Jacob Aaron
MD
San Francisco, CA
Dr. Alistair Aaronson
MD
Stanford, CA
Dr. Jose Abad.
MD
Sacramento, CA
Dr. Donna Abare
MD
Oakland, CA
Marce Abare
Scotts Valley, CA
Compare Internal Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Derald Seid, D.O's specialty? ▼
Derald Seid, D.O specializes in Internal Medicine Physician and practices in San Francisco, California. Credentials: D.O.
How much does Derald Seid, D.O prescribe under Medicare Part D? ▼
In 2023, Derald Seid, D.O wrote 327 Medicare Part D claims totaling $44K in drug costs for 26 beneficiaries.
Where is Derald Seid, D.O located? ▼
Derald Seid, D.O is located at 2250 HAYES ST, San Francisco, CA, 94117. Phone: (415) 221-1901.
What is Derald Seid, D.O's NPI number? ▼
Derald Seid, D.O's National Provider Identifier (NPI) is 1831361047, issued on 03/27/2008.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Derald Seid, D.O prescribe most often? ▼
Based on 2023 Medicare Part D data, Derald Seid, D.O's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Clonidine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Derald Seid, D.O accept Medicare? ▼
Derald Seid, D.O appears in CMS Medicare data with 327 Part D claims and 26 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Derald Seid, D.O's credentials? ▼
Derald Seid, D.O's NPI is 1831361047 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 (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.