NPI registry status
Active
2026 NPPES data Rheumatology Physician NPI 1730155607 MD
Verify on CMS → Alan Baer, MD
Rheumatology Physician in Baltimore, Maryland.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,200 in Rheumatology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
690
Medicare Part D claims · 101 beneficiaries · Rheumatology Physician avg: 2K
Generic prescribing
82%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
74.4/100
▼ 9 pts below national avg 83.1 · Mid-tier
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Alan Baer, MD reported a CMS MIPS final score of 74.4/100 - below the 83.1 national average - and filed 690 Medicare Part D claims in 2023.
- 74.4/100
- MIPS score · -9 vs avg
- 690
- Part D claims, 2023
- 82%
- generic prescribing
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Alan Baer, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
74 12th percentile higher than 12% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Alan Baer, MD sits
This provider among rheumatology physician peers
Across the 2,181 rheumatology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Alan Baer, MD writes more Part D claims than 17% of them and scores higher on MIPS quality than 12% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one rheumatology physician peer from a representative sample of 60; the gold marker is Alan Baer, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Alan Baer, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Alan Baer, MD?
Below national averagePrimary specialty
Rheumatology Physician
Medicare Part D claims
690 66% vs specialty avg
MIPS final score
74.4/100 8.7 pts vs avg
Specialty distribution in Maryland
How Rheumatology Physician compares to other specialties among Maryland providers
Medicare quality performance, MIPS
Alan Baer, MD's 2023 MIPS final score plotted against the Rheumatology Physician national average
- MIPS Final Score
- 74.4/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Rheumatology Physician) - 74.4/100 vs national avg 83.1
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Alan Baer, MD appears in the CMS NPPES registry as a Rheumatology Physician provider holding MD credentials at 5601 LOCH RAVEN BLVD, Baltimore, MD, 21239, with a listed phone of (443) 444-4646. NPI 1730155607 was issued on 02/28/2006.
Medicare Part D records for calendar year 2023 show 690 prescription claims written by this provider, covering 101 Medicare beneficiaries and totaling roughly $766K in drug spend, split 16% brand-name and 82% generic by claim count, with an opioid prescribing rate of 2.0%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 74.4/100 for the 2023 performance year (Quality 64.7, Cost 52.4), compared with the national average of 83.1.
Rheumatology Physician is a mid-sized specialty nationwide, with 6,200 enrolled providers across 52 states and an average of 2,054 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1730155607 |
|---|---|
| Specialty | Rheumatology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 02/28/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
74.3962
Final Score
Avg: 83.1
64.7185
Quality
52.4354
Cost
97
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Alan Baer, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Johns Hopkins University
Baltimore, MD
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Typical
Alan Baer, MD - brand share 16.0%
Rheumatology Physician average
16% brand-name claims vs 82% generic, on 690 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
690
Total Claims
$766K
Total Drug Cost
101
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,533
- Total Day Supply
- 44,940
- Brand vs Generic
- 16% brand / 82% generic
- Brand Drug Cost
- $731K
- Generic Drug Cost
- $35K
- Opioid Claims
- 14 (2.0% rate)
Patient Demographics
- Average Patient Age
- 70.5 years
- Avg HCC Risk Score
- 1.26
- Gender Split
- 77% female / 23% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Alan Baer, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Hydroxychloroquine…
Hydroxychloroquine Sulfate
109 claims
- Allopurinol
Allopurinol
57 claims
- Prednisone
Prednisone
53 claims
- Methotrexate 37
Methotrexate
37 claims
- Alendronate Sodium 26
Alendronate Sodium
26 claims
- Gabapentin 26
Gabapentin
26 claims
- Cevimeline Hcl 25
Cevimeline Hcl
25 claims
- Humira Pen 24
Humira Pen
24 claims
| Drug | Claims |
|---|---|
| Hydroxychloroquine Sulfate | 109 |
| Allopurinol | 57 |
| Prednisone | 53 |
| Methotrexate Methotrexate Sodium | 37 |
| Alendronate Sodium | 26 |
| Gabapentin | 26 |
| Cevimeline Hcl | 25 |
| Humira Pen Adalimumab | 24 |
| Enbrel Sureclick Etanercept | 21 |
| Colchicine | 19 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Rheumatology Physician Overview
How Alan Baer, MD fits within the Rheumatology Physician landscape nationally.
6,200
Rheumatology Physician Providers in US
52
States with Rheumatology Physician
2,054
Avg Claims per Provider
Alan Baer, MD's 690 claims are below the specialty average of 2,054.
Nearby Rheumatology Physician Providers in Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Baer.
Dr. Jonathan Adelson
M.D.
Greenbelt, MD
Dr. Naila Ahmad
MD
Easton, MD
Dr. Grace Ahn
M.D.
Rockville, MD
Dr. Maria Alba-Dauhajre
MD
Silver Spring, MD
Dr. Jemima Felicity Albayda
MD
Baltimore, MD
Compare Rheumatology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Maryland medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Rheumatology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Alan Baer, MD's specialty? ▼
Alan Baer, MD specializes in Rheumatology Physician and practices in Baltimore, Maryland. Credentials: MD.
How much does Alan Baer, MD prescribe under Medicare Part D? ▼
In 2023, Alan Baer, MD wrote 690 Medicare Part D claims totaling $766K in drug costs for 101 beneficiaries.
What is Alan Baer, MD's Medicare quality score? ▼
Alan Baer, MD has a CMS MIPS Final Score of 74.4/100 (Quality: 64.7, Cost: 52.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Alan Baer, MD located? ▼
Alan Baer, MD is located at 5601 LOCH RAVEN BLVD, Baltimore, MD, 21239. Phone: (443) 444-4646.
What is Alan Baer, MD's NPI number? ▼
Alan Baer, MD's National Provider Identifier (NPI) is 1730155607, issued on 02/28/2006.
Does Alan Baer, MD prescribe more brand-name or generic drugs? ▼
Alan Baer, MD's prescribing is 16% brand-name and 82% generic drugs by claim count, with $731K in brand drug costs.
Does Alan Baer, MD prescribe opioids? ▼
Yes, Alan Baer, MD had 14 opioid claims in 2023 with an opioid prescribing rate of 2.0%.
How many Rheumatology Physician providers are there in the US? ▼
There are 6,200 Rheumatology Physician providers across 52 states in the US. The average Rheumatology Physician provider writes 2,054 Medicare Part D claims per year.
What drugs does Alan Baer, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Alan Baer, MD's most frequently prescribed drugs include Hydroxychloroquine Sulfate, Allopurinol, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Alan Baer, MD accept Medicare? ▼
Alan Baer, MD appears in CMS Medicare data with 690 Part D claims and 101 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Alan Baer, MD's credentials? ▼
Alan Baer, MD's NPI is 1730155607 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.