Cyril Grum, MD
NPI 1659453561 · Pulmonary Disease Physician · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cyril Grum, MD is a Pulmonary Disease Physician provider in Ann Arbor, MI (NPI 1659453561).
Provider details
- NPI number
- 1659453561
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301042297 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
413 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Test to Measure Expiratory Airflow and Volume94010 | 120 | $8 |
| Test to Examine How Well the Lungs Exchange Gases94729 | 101 | $9 |
| Test to Measure Expiratory Airflow and Volume94010 | 78 | $8 |
| Test to Examine How Well the Lungs Exchange Gases94729 | 47 | $8 |
| Test to Determine Lung Volumes Using Sensors94726 | 32 | $12 |
| Test to Measure Expiratory Airflow and Volume Changes Before and After Medication Administration94060 | 12 | $9 |
| Test to Measure Expiratory Airflow and Volume Changes Before and After Medication Administration |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Budesonide/Formoterol Fumaratebrand: Symbicort | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-19
- Last updated
- 2020-12-21
- Certified
- 2020-12-21
Frequently asked questions
- What is Cyril Grum's NPI number?
- Cyril Grum's National Provider Identifier (NPI) is 1659453561, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cyril Grum's specialty?
- Cyril Grum is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Cyril Grum located?
- Cyril Grum's practice location on file with NPPES is 1500 E Medical Center Dr, Ann Arbor, MI 48109-5000.
- What is Cyril Grum's phone number?
- The practice phone number listed in the NPPES registry for Cyril Grum is (734) 936-4000.
- Does Cyril Grum accept Medicare?
- Cyril Grum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cyril Grum's NPI active?
- Yes — Cyril Grum's NPI (1659453561) is active in the NPPES registry as of the last update on 2020-12-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.