Frederick Nachtwey, M.D.
NPI 1710901822 · Pulmonary Disease Physician · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frederick Nachtwey, M.D. is a Pulmonary Disease Physician provider in Walnut Creek, CA (NPI 1710901822).
Provider details
- NPI number
- 1710901822
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G35274 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
944 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 584 | $154 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 62 | $134 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 55 | $199 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 54 | $111 |
| Sleep Study Including Heart Rate, Breathing, and Sleep Time95800 | 43 | $44 |
| Test to Examine How Well the Lungs Exchange Gases94729 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 173 | 63 |
| Fluticasone Propion/Salmeterolbrand: Wixela Inhub | 124 | 26 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 103 | 16 |
| Zolpidem Tartrate | 89 | 15 |
| Prednisone | 89 | 41 |
| Fluticasone Propion/Salmeterolbrand: Fluticasone-Salmeterol | 70 | 21 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,906 across 79 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 2101 Vale Rd Ste 300San Pablo, CA 94806-3846Phone: (510) 233-3788Fax: (510) 233-3390
Registry dates
- Enumerated
- 2006-07-26
- Last updated
- 2025-03-03
- Certified
- 2025-03-03
Frequently asked questions
- What is Frederick Nachtwey's NPI number?
- Frederick Nachtwey's National Provider Identifier (NPI) is 1710901822, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Nachtwey's specialty?
- Frederick Nachtwey is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Frederick Nachtwey located?
- Frederick Nachtwey's practice location on file with NPPES is 2637 Shadelands Dr, Walnut Creek, CA 94598-2512.
- What is Frederick Nachtwey's phone number?
- The practice phone number listed in the NPPES registry for Frederick Nachtwey is (925) 944-0166.
- Does Frederick Nachtwey accept Medicare?
- Frederick Nachtwey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Frederick Nachtwey's NPI active?
- Yes — Frederick Nachtwey's NPI (1710901822) is active in the NPPES registry as of the last update on 2025-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.