Christopher Lang, M.D.
NPI 1801007562 · Internal Medicine Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Lang, M.D. is a Internal Medicine Physician provider in Phoenix, AZ (NPI 1801007562).
Provider details
- NPI number
- 1801007562
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 41816 (AZ)
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 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
841 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 524 | $113 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 148 | $109 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 98 | $75 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 71 | $165 |
Typical Medicare-allowed amounts for these services range $75–$165 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 44 | 43 |
| Pantoprazole Sodium | 40 | 28 |
| Tamsulosin Hcl | 39 | — |
| Levothyroxine Sodium | 39 | 11 |
| Amlodipine Besylate | 38 | 17 |
| Metoprolol Tartrate | 36 | 21 |
| Apixaban |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-24
- Last updated
- 2017-04-17
Frequently asked questions
- What is Christopher Lang's NPI number?
- Christopher Lang's National Provider Identifier (NPI) is 1801007562, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Lang's specialty?
- Christopher Lang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Lang located?
- Christopher Lang's practice location on file with NPPES is 9225 N 3rd St, Phoenix, AZ 85020-2439.
- What is Christopher Lang's phone number?
- The practice phone number listed in the NPPES registry for Christopher Lang is (602) 445-0751.
- Does Christopher Lang accept Medicare?
- Christopher Lang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Lang's NPI active?
- Yes — Christopher Lang's NPI (1801007562) is active in the NPPES registry as of the last update on 2017-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.