Are you Mark G. Lazarev, M.D.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 600 N Wolfe St, 1830 Bldg, Rm 420, Baltimore, MD 21287
About Dr. Lazarev
Based in Baltimore, MD, Mark G. Lazarev, M.D. is listed in the NPI registry under gastroenterology. Mark graduated from University of Pittsburgh School of Medicine in 2002. Medicare claims data shows Mark provided 17,321 services to 766 patients. The services billed most often include injection, vedolizumab, intravenous, 1 mg, injection, denosumab, 1 mg, and injection, zoledronic acid, 1 mg. NPI 1104094739 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (410) 614-6708
- Email not available
Practice Locations
600 N WOLFE ST 1830 BLDG, RM 420
Baltimore, MD 21287
Conditions Commonly Evaluated or Treated
Within Gastroenterology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Acid reflux
- Celiac disease
- Crohn's disease
- Hemorrhoids
- IBS
- Swallowing difficulties
- Ulcerative colitis
Biliary and pancreas
Colon and anorectal
Esophagus and swallowing
Functional bowel and motility
Liver
- Ascites
- Autoimmune hepatitis
- Cirrhosis
- Fatty liver disease
- Hemochromatosis
- Hepatitis B
- Hepatitis C
- Portal hypertension
Stomach and duodenum
Bowel & Colon
Digestive Symptoms
Gallbladder & Bile Ducts
Procedures & services
Most searched procedures
Lower endoscopy
Upper endoscopy
Capsule and physiology testing
Diagnostic Testing
Liver procedures
Treatments
Procedures Most Often Billed to Medicare
17,321 services · 766 patients · 15 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
62 | More often than most peers in Gastroenterology |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
34 | Less often than most peers in Gastroenterology |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
31 | Less often than most peers in Gastroenterology |
| Administration of chemotherapy into vein, 1 hour or less | Treatment | 96413 |
140 | More than most peers in Gastroenterology |
| Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | Treatment | 96365 |
76 | More than most peers in Gastroenterology |
| Administration of chemotherapy into vein, each additional hour | Treatment | 96415 |
64 | More than most peers in Gastroenterology |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
34 | As often as other peers in Gastroenterology |
| Injection, vedolizumab, intravenous, 1 mg | Drug given | J3380 |
14,100 | More often than most peers in Gastroenterology |
| Injection, denosumab, 1 mg | Drug given | J0897 |
2,040 | More often than most peers in Gastroenterology |
| Injection, zoledronic acid, 1 mg | Drug given | J3489 |
255 | Too few peers to compare |
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.
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.
Other gastroenterologists in Baltimore 8
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at University of Pittsburgh School of Medicine 7
Other providers in the same specialty who trained at the same institution.
Class of 2002 at University of Pittsburgh School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of large bowel using a flexible endoscope 8
Providers in MD who bill this service to Medicare most often.
Common questions
What kind of doctor is Mark G. Lazarev?
Mark G. Lazarev is a gastroenterologist in Baltimore, MD. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
What is Mark G. Lazarev's address?
Mark G. Lazarev is listed at 600 N Wolfe St 1830 Bldg, Rm 420, Baltimore, MD 21287. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Mark G. Lazarev?
The number on file is (410) 614-6708. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Mark G. Lazarev?
Mark G. Lazarev's National Provider Identifier is 1104094739. 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 Mark G. Lazarev train?
Mark G. Lazarev attended University of Pittsburgh School of Medicine, graduating in 2002. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Mark G. Lazarev have?
Mark G. Lazarev has 24 years experience. Calculated from a graduation year of 2002, reported in the CMS National Downloadable File.
CMS public data
What procedures does Mark G. Lazarev perform?
According to Medicare billing data, Mark G. Lazarev performs procedures including biopsy of large bowel using a flexible endoscope, removal of polyps or growths of large bowel using an endoscope with mechanical snare and biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope; provides treatments such as administration of chemotherapy into vein, 1 hour or less and infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Mark G. Lazarev's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Mark G. Lazarev. If this is you, claiming it is free.
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