Mark Buchfuhrer, MD
NPI 1639130693 · Sleep Medicine (Psychiatry & Neurology) Physician · Downey, CA
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Buchfuhrer, MD is a Sleep Medicine (Psychiatry & Neurology) Physician provider in Downey, CA (NPI 1639130693).
Provider details
- NPI number
- 1639130693
- Entity type
- Individual
- Primary specialty
- Sleep Medicine (Psychiatry & Neurology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G41254 (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
20 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
1,747 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 477 | $93 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 330 | $127 |
| Test to Measure Expiratory Airflow and Volume Changes Before and After Medication Administration94060 | 173 | $44 |
| Test to Determine Lung Volumes Using Gas Dilution Or Washout94727 | 173 | $51 |
| Test to Examine How Well the Lungs Exchange Gases94729 | 173 | $65 |
| Test for Exercise-Induced Lung Stress94618 | 141 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 78 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 811 | 173 |
| Methadone Hcl | 475 | 89 |
| Fluticasone Propionate | 323 | 127 |
| Gabapentin | 274 | 61 |
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 242 | 70 |
| Oxycodone Hcl | 234 | 37 |
| Atorvastatin Calcium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,013 across 143 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)
- 300 Pasteur DrPalo Alto, CA 94304-2203Phone: (650) 723-4000
Registry dates
- Enumerated
- 2006-03-30
- Last updated
- 2024-04-29
- Certified
- 2024-04-29
Frequently asked questions
- What is Mark Buchfuhrer's NPI number?
- Mark Buchfuhrer's National Provider Identifier (NPI) is 1639130693, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Buchfuhrer's specialty?
- Mark Buchfuhrer is listed in the NPPES registry with a primary specialty of Sleep Medicine (Psychiatry & Neurology) Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Buchfuhrer located?
- Mark Buchfuhrer's practice location on file with NPPES is 11480 Brookshire Avenue, Downey, CA 90241-5019.
- What is Mark Buchfuhrer's phone number?
- The practice phone number listed in the NPPES registry for Mark Buchfuhrer is (562) 904-1101.
- Does Mark Buchfuhrer accept Medicare?
- Mark Buchfuhrer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Buchfuhrer's NPI active?
- Yes — Mark Buchfuhrer's NPI (1639130693) is active in the NPPES registry as of the last update on 2024-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.