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Edit this profileWhere to find Stefanie Altmann, DO
- Walnut Creek location main office
100 Pringle Ave Ste 425, Walnut Creek, CA 94596 - Key West location
1010 Kennedy Dr Ste 304, Key West, FL 33040 - Pleasanton location
5575 W Las Positas Blvd Ste 230, Pleasanton, CA 94588 - Islamorada location
82883 Overseas Highway, Islamorada, FL 33036
About Dr. Altmann
Stefanie Altmann, DO is a healthcare provider in Walnut Creek, CA specializing in internal medicine. Stefanie is also listed as specializing in dermatology. According to Medicare claims data, Stefanie cared for 2,627 Medicare patients across 4,277 services. The services billed most often include destruction of precancer skin growth, 2-14 growths, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks. This provider record is associated with NPI 1912494188.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (925) 932-3800
- Email not available
Practice Locations
100 PRINGLE AVE STE 425
Walnut Creek, CA 94596
1010 Kennedy Dr Ste 304
Key West, FL 33040
5575 W Las Positas Blvd Ste 230
Pleasanton, CA 94588
82883 Overseas Highway
Islamorada, FL 33036
Conditions Commonly Evaluated or Treated
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Cancer Prevention
Cancer risk
Environmental health
- Asbestos Exposure
- Contaminated drinking water exposure
- Heat exhaustion and heat stroke
- Radon gas exposure
- Tick bite and Lyme disease risk
- Toxic Mold Exposure
- Wildfire smoke and air pollution exposure
- Workplace Chemical Exposure
General wellness
Heart health
Infectious Disease
Infectious disease
Kidney health
Lifestyle & wellness
Lifestyle health
Longevity
Metabolic & Lifestyle
Occupational health
Occupational Health
Rashes & allergy
Sexual Health
Sexual health
Substance use
Travel health
Wellness and energy
Workplace health
Most searched conditions
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Procedures & services
Addiction & habits
Cancer screening
Cancer Screening
Checkups & exams
Chronic illness
Diagnostics & screening
Environmental health
Fitness & body composition
Heart & Circulation
Heart & circulation
Heart health
Hospital-based procedures
Imaging referral
Immunizations
Infection & Microbiology Tests
Lifestyle & Prevention
Longevity
Lower endoscopy
Lungs & Breathing
Metabolic & Weight
Metabolic health
Occupational health
Occupational Health
Office Procedures
Preventive and evaluation
- Preoperative medical clearance
- Medication management
- Post-hospital transitional care
Preventive imaging
Preventive screening
Routine Blood Tests
Screening & labs
Screening and diagnostic testing
- Blood pressure screening
- Cancer screening and prevention planning
- Diabetes and prediabetes screening
- EKG
- Spirometry
Screenings & Diagnostics
Travel Health
Travel medicine
Wellness
Wellness & Screening
Workplace health
Skin growths
Sleep
Most searched procedures
Bones & Joints
Brain and nerves
Digestive
Exams & Consultations
Lab tests
Minor procedures
Office procedures
Pain management
Preventive & Routine Care
Sexual health
Procedures Most Often Billed to Medicare
4,277 services · 2,627 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Destruction of precancer skin growth, 2-14 growths | Procedure | 17003 |
1,066 | More than most peers in Internal Medicine |
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks | Procedure | 17311 |
339 | Too few peers to compare |
| Biopsy of related skin growth, first growth | Procedure | 11102 |
328 | More than most peers in Internal Medicine |
| Destruction of precancer skin growth, 1 growth | Procedure | 17000 |
296 | More than most peers in Internal Medicine |
| Biopsy of related skin growth, each additional growth | Procedure | 11103 |
272 | More than most peers in Internal Medicine |
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks | Procedure | 17312 |
228 | Too few peers to compare |
| Complicated repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet, 2.6-7.5 cm | Procedure | 13132 |
195 | Too few peers to compare |
| Complicated repair of wound of scalp, arms, or legs, 2.6-7.5 cm | Procedure | 13121 |
142 | Too few peers to compare |
| Destruction of precancer skin growth, 15 or more growths | Procedure | 17004 |
139 | More often than most peers in Internal Medicine |
| Removal and microscopic exam of growth of trunk, arms, or legs, 1-5 tissue blocks | Procedure | 17313 |
92 | Too few peers to compare |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 1
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other internists in Walnut Creek 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2018 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Destruction of precancer skin growth, 2-14 growths 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Altmann?
Dr. Altmann is an internist in Walnut Creek, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
What is Dr. Altmann's address?
Dr. Altmann is listed at 100 Pringle Ave Ste 425, Walnut Creek, CA 94596. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Altmann?
The number on file is (925) 932-3800. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Altmann's NPI number?
Dr. Altmann's National Provider Identifier is 1912494188. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Altmann train?
Dr. Altmann attended Other, graduating in 2018. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Altmann been practicing?
Dr. Altmann has 8 years experience. Calculated from a graduation year of 2018, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Altmann perform?
According to Medicare billing data, Dr. Altmann performs procedures including destruction of precancer skin growth, 2-14 growths, removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks and biopsy of related skin growth, first growth; provides treatments such as application of light with debridement to destroy precancer skin growth, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Altmann confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Altmann. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.