NPI registry status
Active
2026 NPPES data MOHS-Micrographic Surgery Physician NPI 1912494188 DO
Verify on CMS → Stefanie Altmann, DO
MOHS-Micrographic Surgery Physician in Walnut Creek, 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 1,143 in MOHS-Micrographic Surgery 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
1K
Medicare Part D claims · 576 beneficiaries · MOHS-Micrographic Surgery Physician avg: 657
Industry payments
$763.3
28 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Stefanie Altmann, DO filed 1,126 Medicare Part D claims in 2024 as a MOHS-Micrographic Surgery Physician in Walnut Creek, California.
- 1K
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥77th
- 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 Stefanie Altmann, DO
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 1912494188), first enumerated 04/13/2018.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,126 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
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
$763.3 in reported industry payments (28 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 Stefanie Altmann, DO'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 1912494188 · MOHS-Micrographic Surgery Physician
NPI-10 · ENUM-RECENT · TAX-NARROW · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1912494188
- ENUM-RECENT 2018
- TAX-NARROW 1,143
- RX-MID 1,126
- BOOK-THIN 152 in California
- PHOTO-ENUM Steven Krueger, MD · 2018
Stefanie Altmann, DO's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,126 ≥ 77th percentile 77% 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 certification likely (heuristic, not verified)
Stefanie Altmann, DO practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Stefanie Altmann, DO?
Quality data not reportedPrimary specialty
MOHS-Micrographic Surgery Physician
Medicare Part D claims
1,126 71% vs specialty avg
Specialty distribution in California
How MOHS-Micrographic Surgery 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 MOHS-Micrographic Surgery 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 | 1912494188 |
|---|---|
| Specialty | MOHS-Micrographic Surgery Physician |
| Credentials | DO |
| Gender | Female |
| NPI Issued | 04/13/2018 |
Hospital and facility affiliations
Facilities where Stefanie Altmann, DO 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.
Berman Skin Institute Medical Group Inc
Walnut Creek, 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 Stefanie Altmann, DO. Source: openpaymentsdata.cms.gov.
Total received
$763
Largest payer
Lilly USA, LLC
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 Stefanie Altmann, DO. To verify Stefanie Altmann, DO'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.
1,126
Total Claims
$23K
Total Drug Cost
576
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,157.667
- Total Day Supply
- 23,004
- Generic Drug Cost
- $19K
- Opioid Claims
- 19 (1.7% rate)
- Antibiotic Claims
- 245
Patient Demographics
- Average Patient Age
- 75.2 years
- Avg HCC Risk Score
- 1.18
- Gender Split
- 48% female / 52% male
- Age Distribution
- <65: 17, 65-74: 262, 75-84: 229, 85+: 68
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Stefanie Altmann, DO prescribes most
Top Medicare Part D drugs by claim count, 2024
- Mupirocin
Mupirocin
264 claims
- Triamcinolone Acet…
Triamcinolone Acetonide
150 claims
- Gentamicin Sulfate
Gentamicin Sulfate
143 claims
- Doxycycline Hyclate
Doxycycline Hyclate
113 claims
- Ketoconazole 81
Ketoconazole
81 claims
- Doxycycline Monohy… 55
Doxycycline Monohydrate
55 claims
- Cephalexin 51
Cephalexin
51 claims
- Clobetasol Propion… 49
Clobetasol Propionate
49 claims
| Drug | Claims |
|---|---|
| Mupirocin | 264 |
| Triamcinolone Acetonide | 150 |
| Gentamicin Sulfate | 143 |
| Doxycycline Hyclate | 113 |
| Ketoconazole | 81 |
| Doxycycline Monohydrate | 55 |
| Cephalexin | 51 |
| Clobetasol Propionate | 49 |
| Hydrocortisone | 43 |
| Fluorouracil | 37 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More MOHS-Micrographic Surgery Physician in CA →
All providers in California →
Compare specialties →
MOHS-Micrographic Surgery Physician Overview
How Stefanie Altmann, DO fits within the MOHS-Micrographic Surgery Physician landscape nationally.
1,143
MOHS-Micrographic Surgery Physician Providers in US
52
States with MOHS-Micrographic Surgery Physician
657
Avg Claims per Provider
Stefanie Altmann, DO's 1,126 claims are above the specialty average of 657.
Nationwide MOHS-Micrographic Surgery Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Altmann, both outside California so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2018)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby MOHS-Micrographic Surgery Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Altmann.
One of 152 MOHS-Micrographic Surgery Physician providers enrolled in California, 5 are shown here.
Dr. Sam Abaza
M.D.
Diamond Bar, CA
Dr. Payam Abrishami
MD
Agoura Hills, CA
Dr. Vince Afsahi
M.D.
Tustin, CA
Dr. Kristen Aguirre
MD
Oceanside, CA
Dr. Ji Won Ahn
MD
Walnut Creek, CA
Compare MOHS-Micrographic Surgery Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Stefanie Altmann, DO's specialty? ▼
Stefanie Altmann, DO specializes in MOHS-Micrographic Surgery Physician and practices in Walnut Creek, California. Credentials: DO.
How much does Stefanie Altmann, DO prescribe under Medicare Part D? ▼
In 2024, Stefanie Altmann, DO wrote 1,126 Medicare Part D claims totaling $23K in drug costs for 576 beneficiaries.
Where is Stefanie Altmann, DO located? ▼
Stefanie Altmann, DO is located at 100 PRINGLE AVE STE 425, Walnut Creek, CA, 94596. Phone: (925) 932-3800.
What is Stefanie Altmann, DO's NPI number? ▼
Stefanie Altmann, DO's National Provider Identifier (NPI) is 1912494188, issued on 04/13/2018.
Does Stefanie Altmann, DO prescribe opioids? ▼
Yes, Stefanie Altmann, DO had 19 opioid claims in 2024 with an opioid prescribing rate of 1.7%.
How many MOHS-Micrographic Surgery Physician providers are there in the US? ▼
There are 1,143 MOHS-Micrographic Surgery Physician providers across 52 states in the US. The average MOHS-Micrographic Surgery Physician provider writes 657 Medicare Part D claims per year.
What drugs does Stefanie Altmann, DO prescribe most often? ▼
Based on 2024 Medicare Part D data, Stefanie Altmann, DO's most frequently prescribed drugs include Mupirocin, Triamcinolone Acetonide, Gentamicin Sulfate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Stefanie Altmann, DO accept Medicare? ▼
Stefanie Altmann, DO appears in CMS Medicare data with 1,126 Part D claims and 576 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Stefanie Altmann, DO's credentials? ▼
Stefanie Altmann, DO's NPI is 1912494188 with credentials DO. 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.