Physician Profile
Unclaimed ProfileAbout Dr. Sager
David Selwyn Sager, M.D. practices rheumatology in Des Plaines, IL. David is a 1973 graduate of Illinois Medical College. David is also listed as specializing in specialist. According to Medicare claims data, David cared for 5,072 Medicare patients across 167,806 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (847) 298-8470
- Email not available
Practice Locations
150 N RIVER RD
Des Plaines, IL 60016
Procedures Most Often Billed to Medicare
167,806 services · 5,072 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
832 |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
755 |
| Administration of chemotherapy into vein, each additional hour | Treatment | 96415 |
612 |
| Administration of chemotherapy into vein, 1 hour or less | Treatment | 96413 |
346 |
| Injection, certolizumab pegol, 1 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) | Drug given | J0717 |
94,004 |
| Injection, tocilizumab, 1 mg | Drug given | J3262 |
38,600 |
| Injection, infliximab, excludes biosimilar, 10 mg | Drug given | J1745 |
12,360 |
| Injection, denosumab, 1 mg | Drug given | J0897 |
8,751 |
| Injection, methylprednisolone acetate, 1 mg | Drug given | J1010 |
1,160 |
| Infusion, normal saline solution, 250 cc | Drug given | J7050 |
844 |
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.
Other rheumatology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 15 related providers in 4 groups
Other rheumatology specialists in Des Plaines 2
Same specialty, same city.
Trained at Illinois Medical College 2
Other providers in the same specialty who trained at the same institution.
Class of 1973 at Illinois Medical College 3
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in IL who bill this service to Medicare most often.
Common questions
What does Dr. Sager specialize in?
Dr. Sager is a rheumatology in Des Plaines, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “RHEUMATOLOGY”.
NPI registry
Where is Dr. Sager located?
Dr. Sager is listed at 150 N RIVER RD, Des Plaines, IL 60016. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Sager's phone number?
The number on file is (847) 298-8470. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Sager's NPI number?
Dr. Sager's National Provider Identifier is 1295850766. 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. Sager go to medical school?
Dr. Sager attended Illinois Medical College, graduating in 1973. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Sager been practicing?
Dr. Sager has 53 years experience. Calculated from a graduation year of 1973, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Sager do most often?
According to Medicare billing data, Dr. Sager performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as injection of drug or substance under skin or into muscle and administration of chemotherapy into vein, each additional hour, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Sager confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Sager. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.